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10 Worst Computer Viruses in history

Computers viruses, worms, ransomware, etc. are kinds of malicious software that no user should take lightly. On several occasions, we have touched upon security steps that each user should take in order to protect its identity and data. Sadly sometimes even when all precautions are taken some malware can still slip through and wreak havoc. Today we are looking at some of the worst or the best, depending on your view that has indeed wreaked plenty of havoc.

viruses10 worst computer viruses in history

In the list of the 10 most famous computer viruses below, we show the costs, dates, reach, and other key facts. First a note about terms: we use the words “virus” and “worm” interchangeably because most readers search for them that way. But there’s a subtle difference that we explain after the list.

1. Mydoom – $38 billion

The worst computer virus outbreak in history, Mydoom caused estimated damage of $38 billion in 2004, but its inflation-adjusted cost is actually $52.2 billion. Also known as Novarg, this malware is technically a “worm,” spread by mass emailing. At one point, the Mydoom virus was responsible for 25% of all emails sent.
Mydoom scraped addresses from infected machines, then sent copies of itself to those addresses. It also roped those infected machines into a web of computers called a botnet that performed distributed denial of service (DDoS) attacks. These attacks were intended to shut down a target website or server.

Mydoom is still around today, generating 1% of all phishing emails. That’s no small feat considering the 3.4 billion phishing emails sent each day. By that figure, Mydoom has taken on a life of its own, infecting enough poorly-protected machines to send 1.2 billion copies of itself per year, 16 years after its creation.
Though a $250,000 reward was offered, the developer of this dangerous computer worm was never caught.
Wondering what makes the world’s most secure computers so safe? See the Tech@Work guide: Upgrade to the World's Most Secure and Manageable PC

2. Sobig – $30 billion

The 2003 Sobig computer virus is actually another worm. It is second only to the Mydoom virus in its scope. The $30 billion figure is a worldwide total, including Canada, the U.K., the U.S., mainland Europe, and Asia. Several versions of the worm were released in quick succession, named Sobig.A through Sobig.F, with Sobig.F being the most damaging.
This cybercriminal program masqueraded as legitimate computer software attached to emails. It disrupted ticketing at Air Canada and interfered with countless other businesses. Despite its widespread damage, the creator of the successful bug was never caught.

3. Klez – $19.8 billion

Klez is a close third on the list of the worst computer viruses ever created. With nearly $20 billion in estimated damages, it infected about 7.2% of all computers in 2001, or 7 million PCs. The Klez worm sent fake emails, spoofed recognized senders and, among other things, attempted to deactivate other viruses.
As with other viruses and worms, Klez was released in several variants. It infected files, copied itself, and spread throughout each victim’s network. It hung around for years, with each version more destructive than the last.
Windows has come a long way since most of the computer viruses on this list hit the web. Thankfully, built-in protection with Microsoft Defender is always on the watch.

4. ILOVEYOU – $15 billion

The year 2000’s ILOVEYOU virus worked by sending a bogus “love letter” that looked like a harmless text file. Like Mydoom, this attacker sent copies of itself to every email address in the infected machine’s contact list. Shortly after its May 4 release, it had spread to more than 10 million PCs.
The virus was created by a college student in the Philippines named Onel de Guzman. Lacking funds, he wrote the virus to steal passwords so he could log into online services he wanted to use for free. He reportedly had no idea how far his creation would spread. This virus is also known as Loveletter.
Need to up your remote work security game before there’s another entry on the list of most deadly computer viruses? See our guide: How to Work Remotely and Securely

5. WannaCry – $4 billion

The 2017 WannaCry computer virus is ransomware, a virus that takes over your computer (or cloud files) and holds them hostage. The WannaCry ransomware ripped through computers in 150 countries, causing massive productivity losses as businesses, hospitals, and government organizations that didn’t pay were forced to rebuild systems from scratch.
The malware raged like wildfire through 200,000 computers worldwide. It stopped when a 22-year-old security researcher in the U.K. found a way to turn it off. Computers with out-of-date operating systems were hit especially hard. That’s why security experts always recommend updating your systems frequently.

Ransomware strikes again

In September 2020, one of the potentially largest computer virus attacks in medical history hit Universal Health Services. The U.S. hospital chain, which has more than 400 locations, was reportedly struck by damaging ransomware. The attack forced the cancellation of surgeries and made healthcare workers switch to paper records.

6. Zeus – $3 billion

The Zeus computer virus is an online theft tool that hit the web in 2007. A whitepaper by Unisys three years later estimated that it was behind 44% of all banking malware attacks. By then, it had breached 88% of all Fortune 500 companies, 2,500 organizations total, and 76,000 computers in 196 countries.
The Zeus botnet was a group of programs that worked together to take over machines for a remote “bot master.” It originated in Eastern Europe and was used to transfer money to secret bank accounts. More than 100 members of the crime ring behind the virus, mostly in the U.S., were arrested in 2010. It’s not as prominent today, but some of the virus’ source code lives on in newer botnet viruses and worms.

Zeus caused documented damage of $100 million. But the real cost in terms of lost productivity, removal, and undocumented theft is undoubtedly much higher. A $3 billion estimate, adjusted for inflation, puts this virus at a cost of $3.7 billion in today’s dollars.

7. Code Red – $2.4 billion

First observed in 2001, the Code Red computer virus was yet another worm that penetrated 975,000 hosts. It displayed the words “Hacked by Chinese!” across infected web pages, and it ran entirely in each machine’s memory. In most cases it left no trace in hard drives or other storage.
Financial costs are pegged at $2.4 billion. The virus attacked websites of infected computers and delivered a distributed denial of service (DDoS) attack on the U.S. White House’s website, www.whitehouse.gov. In fact, the White House had to change its IP address to defend against Cod Red.
Can your printer get a virus? See our cool infographic: The State of Printer Security

8. Slammer – $1.2 billion

The SQL Slammer worm cost an estimated $750 million across 200,000 computer users in 2003. This computer virus randomly selected IP addresses, exploiting vulnerabilities and sending itself on to other machines. It used these victim machines to launch a DDoS attack on several internet hosts, significantly slowing internet traffic.
The Slammer worm hit banks in the U.S. and Canada especially hard, taking ATMs offline in many locations. Customers of Toronto’s Imperial Bank of Commerce found themselves unable to access funds. The attack reared its ugly head again in 2016, launching from IP addresses in Ukraine, China, and Mexico.

9. CryptoLocker – $665 million

Thankfully, ransomware attacks like the 2013 CryptoLocker virus have dipped since their 2017 peak. This malware attacked upwards of 250,000 machines by encrypting their files. It displayed a red ransom note informing users that “your important files encryption produced on this computer.” A payment window accompanied the note.
The virus’ creators used a worm called the Gameover Zeus botnet to make and send copies of the CryptoLocker virus. According to a report by security firm Sophos, the average ransomware attack costs a business $133,000. If we estimate that CryptoLocker hit 5,000 companies, that would put its total cost at $665 million.
Where will cybersecurity go next? See our guide: The Future of Cybersecurity

10. Sasser – $500 million

The Sasser worm was written by a 17-year-old German computer science student named Sven Jaschan. He was arrested at the age of 18 in 2004 after a $250,000 bounty was posted for the computer virus’ creator. A friend of Jaschan’s tipped authorities that the youth had penned not only the Sasser worm but also the damaging Netsky.AC attack.
Jaschan was given a suspended sentence after it was found he was a minor when he wrote the malware. The Sasser worm crashed millions of PCs, and though some reports put damages at $18 billion, the relatively low infection rate suggests a more likely cost of $500 million.
Other notable viruses

The top 10 worst computer viruses above are just the ugly tip of a gargantuan digital iceberg. With a million new malware programs popping up every 3 years, we may miss the forest for a few outstanding trees. Here are just a few more viruses that have wreaked havoc over the years:

Mimail: This worm tried to harvest data from infected machines to launch a string of DDoS attacks, but was relatively easy to remove.

Yaha: Yet another worm with several variants, thought to be the result of a cyber-war between Pakistan and India.

Swen: Written in C++, the Swen computer worm disguised itself to look like a 2003 OS update. Its financial cost has been pegged at $10.4 billion, but not reliably.

Storm Worm: This worm showed up in 2007 and attacked millions of computers with an email about approaching bad weather.

Tanatos/Bugbear: A 2002 keylogger virus that targeted financial institutions and spread to 150 countries.

Sircam: A computer worm from 2001 that used counterfeit emails with the subject line, “I send you this file in order to have your advice.”

Explorezip: This worm used fake emails to spread to every machine on thousands of local networks.

Melissa: The most dangerous computer virus in 1999, Melissa sent copies of itself that looked like NSFW pics. The U.S. FBI estimated cleanup and repair costs at $80 million.

Flashback: A Mac-only virus, Flashback infected over 600,000 Macs in 2012 and even infected Apple’s home base in Cupertino, Calif. In 2020, there’s now more malware on Macs than on PCs.

Conficker: This 2009 virus still infects many legacy systems and could do significant damage if it ever activates.

Stuxnet: This worm is reported to have destroyed Iranian nuclear centrifuges by sending damaging instructions.

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Backup and Restore pinned Taskbar Items
Pinned Windows 10 Taskbar Items. One of the most used interfaces in the Windows environment is the Taskbar. It is where users like to pin their most-used programs as well as shortcuts with extra privileges and automated tasks. In fact, it’s a lot better than the Start Menu. So if any Windows Update messes up with your computer, or if you’ve just switched to a different computer, setting up the Taskbar with the very same set of programs you used to have is definitely not an easy task. But worry not as this post will guide you on how you can backup and restore the items on your Taskbar either manually or automatically.

Manual Backup:

  • Tap the Win + R keys to open the Run prompt.
  • Then type “%AppData%MicrosoftInternet ExplorerQuick LaunchUser PinnedTaskBar” in the field and hit Enter to open the folder where you can see all the shortcuts or pinned items in the Taskbar.
  • After that, copy all the files in the folder and paste them somewhere else as a backup. For instance, E:\Pinned Items Backuppinnedshortcuts.
  • Next, tap the Win + R keys to open the Run prompt once more, and then type “Regedit” in the field and hit Enter to open the Registry Editor. When the User Account Control dialog box appears, click Yes.
  • After opening the Registry Editor, navigate to this key – HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionExplorerTaskband
  • Then right-click on the Taskbar folder and select Export.
  • Now save the file with the .reg extension to another location like the E:\Pinned Items Backup folder and then name it.
  • Close the Registry Editor.

Manual Restore:

Make sure to copy all the files to one of the drives if you are using another computer and then refer to the following steps.
  • Tap the Win + R keys to open the Run prompt.
  • Then type “%AppData%MicrosoftInternet ExplorerQuick LaunchUser PinnedTaskBar” in the field and hit Enter to open the same folder where you just copied all the shortcuts. Make sure to keep it open.
  • Then open the backup folder where you saved all the pinned items and copy all the files there.
  • Next, go to the Taskbar folder (%AppData%MicrosoftInternet ExplorerQuick LaunchUser PinnedTaskBar) and then paste your files in there. If you encounter a problem while doing so, just replace it with your own set of files.
  • After that, go to E:\Pinned Items Backuppinnedshortcuts and then double click on tb-pinned-items.reg. If a User Account Control prompt appears, click Yes. This will add the registry file into the main registry hub. You will also get a dialog box that will confirm that data has been added to the registry successfully. Click OK.
  • You should now see the items on the Taskbar. You have to restart Windows Explorer. To do so, end its process in the Task Manager.

Automatic Backup:

Backing up and restoring the pinned Taskbar items in your Windows 10 computer can be done automatically as well. But before you get started on the process, you need to understand what’s going on behind the hood first. First, you need to create two bat files and name them “Backup Pinned Taskbar Items” and “Restore Pinned Taskbar Items”. After you have that covered, refer to the following steps:
  • Open the Notepad app and paste the following details and save it as “Backup Pinned Taskbar Items.bat.
REG EXPORT HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionExplorerTaskband “E:\Pinned Items Backuptb-pinned-items.reg” xcopy “%AppData%MicrosoftInternet ExplorerQuick LaunchUser PinnedTaskBar” “E:\Pinned Items Backuppinnedshortcuts” /E /C /H /R /K /Y
  • After that, run the newly created bat file with admin privileges.

Automatic Restore:

  • Open the Notepad app and paste the following details and save it as “Restore Pinned Taskbar Items.bat”.
REGEDIT /S “E:Pinned Items Backuptb-pinned-items.reg” xcopy “E:Pinned Items Backuppinnedshortcuts” “%AppData%MicrosoftInternet ExplorerQuick LaunchUser PinnedTaskBar” /E /C /H /R /K /Y
  • After that, run the bat file with admin privileges.
Note: Just so you know, there is a drawback to this process as we’ve noticed that any pinned apps that were downloaded from the Windows Store don’t appear in these places and any items downloaded and installed separately from the internet and then pinned.
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How to remove myBrowser

myBrowser is a Potentially Unwanted Program that allows users to access the internet. This browser suggests users install other PUP like myfiles, myemail, and others. This application claims to be a good reliable portable internet browser, however during our test use of the program several website scripts crashed and were not able to open up all the website assets required, leaving the users with a mediocre browsing experience.

While browsing the internet through this program, you might see additional ads and sponsored links injected into your search results and/or websites.

About Potentially Unwanted Applications

What is a Potentially Unwanted Program (PUP)?

Everyone has experienced it – you download and install a free application, you then notice some unwanted programs on your computer system, come across a strange toolbar on your web browser, or find your default search engine has been changed to something else. You didn’t set them up, so how did they turn up? Potentially Unwanted Programs (PUP), also referred to as Potentially Unwanted Applications (PUA), are programs that you never wanted in the first place and often come bundled with freeware software. Once installed, most of these applications can be difficult to eliminate and become much more of an annoyance rather than a necessity. PUP doesn’t involve malware in the traditional sense. A basic difference between PUP and malware is distribution. Malware is commonly dropped by silent installation vectors such as drive-by downloads while PUP gets installed with the consent of the user, who knowingly or unintentionally authorizes the PUP installation on their PC. PUP developers may argue that their programs aren’t malicious software but they can still be dangerous software and put the computer at risk much the same way a computer virus does.

What do PUPs do on your PC, precisely?

Unwanted programs can be found in various forms. Usually, they will be found in adware bundlers that are known to utilize aggressive and misleading advertising. The majority of bundlers install many adware applications from several vendors, each of which features its own EULA policy. Safebytes Anti-malware entirely removes this threat and protects your PC against unwanted programs or malware infection. PUPS also appear in the form of undesirable toolbars or web browser add-ons. They may change your internet browser settings, monitor your surfing activities and online searches, take up a large amount of space on your monitor, and degrade your web browsing experience. Potentially Unwanted Programs at times act quite similarly to computer viruses or spyware. They will often carry keyloggers, dialers, and other programs built inside them that may track you or send your sensitive details to third parties. Even if the PUPs aren’t basically malicious, these programs still do absolutely nothing good on your computer – they will take precious resources, slow down your PC, weaken your device’s security, making your PC more vulnerable to trojans.

Protect yourself from PUPs

• Read very carefully before you install anything. Do not click accept till you have read the fine print. There will probably be a clause about PUPs. • Always select “Custom” or “Advanced” installation and never blindly click the Next button, which will let you uncheck any foistware software programs you do not want. • Use an anti-PUP program. Security software like Safebytes Anti-malware provides the very best real-time protection against PUPs and also other malware. • Be alert if you install freeware, open-source software, or shareware. Don’t install programs that appear suspicious or malicious. • Always download software from reliable sources like official websites instead of untrustworthy sharing space. Stay away from file-hosting sites where/when possible. Comply with these guidelines and you should more or less never get potentially unwanted programs on your PC

What To Do When You Cannot Install Safebytes Anti-Malware?

Malware could cause all kinds of damage once they invade your PC, from stealing your private details to deleting files on your computer. Some malware is designed to restrict or prevent things that you wish to do on your computer. It may well not let you download anything from the internet or stop you from accessing a few or all of the internet sites, particularly the anti-malware sites. So what you should do if malware prevents you from downloading or installing Safebytes Anti-Malware? Follow the instructions below to eliminate malware by alternate methods.

Make use of Safe Mode to fix the problem

If any virus is set to run automatically when Microsoft Windows starts, stepping into safe mode could very well block this attempt. Since only the minimal programs and services launch in Safe Mode, there are hardly any reasons for issues to occur. Below are the steps you need to follow to start into the Safe Mode of your Windows XP, Vista, or 7 computers (check out the Microsoft website for instructions on Windows 8 and 10 computers). 1) Hit the F8 key repeatedly as soon as your PC boots, but before the big Windows logo comes up. This will bring up the Advanced Boot Options menu. 2) Make use of the arrow keys to select Safe Mode with Networking and press ENTER. 3) When this mode loads, you should have the internet. Now, make use of your internet browser to download and install an anti-malware application. 4) Right after the software is installed, let the scan run to remove viruses and other threats automatically.

Obtain the antivirus software using a different browser

Some malware mainly targets specific web browsers. If this sounds like your case, make use of another internet browser as it might circumvent the virus. If you’re not able to download the security application using Internet Explorer, this means the virus is targeting IE’s vulnerabilities. Here, you should switch to another internet browser such as Chrome or Firefox to download the Safebytes program.

Create a bootable USB antivirus drive

Here’s another solution which is creating a portable USB anti-virus software package that can scan your system for malware without needing installation. Adopt these measures to run the anti-virus on the affected PC. 1) Download Safebytes Anti-Malware or Microsoft Windows Defender Offline onto a clean PC. 2) Plug in the pen drive into the uninfected computer. 3) Double click on the exe file to open the installation wizard. 4) When asked, choose the location of the USB drive as the place in which you want to store the software files. Follow the directions to finish the installation process. 5) Now, transfer the flash drive to the infected computer. 6) Double-click the EXE file to open the Safebytes tool right from the flash drive. 7) Click the “Scan” button to run a full computer scan and remove malware automatically.

SafeBytes Anti-Malware: Lightweight Malware Protection for Windows Computer

If you’re looking to download the anti-malware program for your computer, there are numerous tools on the market to consider however, you should not trust blindly anyone, irrespective of whether it is a paid or free program. Some of them do a good job in removing threats while some will ruin your computer themselves. You have to select one that is reliable, practical and has a good reputation for its malware source protection. On the list of strongly recommended tool by industry experts is SafeBytes Anti-Malware, a well known security software for Microsoft Windows. SafeBytes is a powerful, real-time anti-malware application that is designed to assist the common computer user in safeguarding their computer from malicious threats. With its outstanding protection system, this tool will quickly detect and eliminate the majority of the security threats, which includes adware, viruses, browser hijackers, ransomware, trojans, worms, and PUPs.

SafeBytes anti-malware takes computer protection to a whole new level with its enhanced features. The following are some of the great features included in the software.

Live Protection: SafeBytes offers real-time active checking and protection against all known viruses and malware. It will continuously monitor your pc for hacker activity and also gives end-users superior firewall protection. Best AntiMalware Protection: This deep-cleaning anti-malware application goes much deeper than most antivirus tools to clean your computer. Its critically acclaimed virus engine locates and disables hard to remove malware that hides deep within your computer. Website Filtering: SafeBytes provides instant safety rating to the webpages you’re going to visit, automatically blocking unsafe sites and to make sure that you are certain of your safety while browsing the internet. Lightweight Utility: SafeBytes is a light-weight application. It consumes a very small amount of processing power as it works in the background so you are free to use your Windows-based computer the way you really want. Premium Support: You will get 24/7 technical assistance to quickly resolve any concern with your security application. SafeBytes can keep your PC protected from the latest malware threats automatically, thus keeping your online experience secure and safe. Now you may realize that this tool does more than just scan and delete threats in your computer. If you’re looking for the very best malware removal tool out there, and if you don’t mind spending some dollars for it, opt for SafeBytes Anti-Malware.

Technical Details and Manual Removal (Advanced Users)

If you want to carry out the removal of myBrowser manually instead of using an automated software tool, you can follow these simple steps: Proceed to the Windows Control Panel, click on the “Add/Remove Programs” and there, choose the offending application to remove. In cases of suspicious versions of browser extensions, you can easily remove them through your web browser’s extension manager. You will most probably also want to totally reset your internet browser to its default settings. Lastly, check your hard disk for all of the following and clean your Windows registry manually to remove leftover application entries after uninstalls. Please remember that only advanced computer users should try to manually edit the registry because incorrect file deletion leads to a major problem or even a PC crash. Moreover, some malicious programs have the capability to defend against its deletion. Carrying out this in Safe Mode is advised.
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Merge or Delete an OEM Partition in Windows
OEM Partition, also known as System Reserved Partition, is placed by the OEM to help users recover their computers or bring back the original state of the computer when it was bought. If you’ve observed that a part of your hard drive says “Healthy (OEM partition)” in the Disk Management and it occupies space in GBs, then this means that it’s normal and there’s nothing to worry about except that part of the storage space is not available and even when you right-click on it, the only thing it displays is the Help menu. Thus, in this guide, you will be guided on how you can merge as well as delete an OEM partition in your Windows 10 computer. Since the Disk Management tool in Windows won’t let you merge or delete the OEM partition, you can just use the built-in command-line tool known as Diskpart. Note that you have to be extra careful when you run the commands as it could mess your computer up and before you proceed with the instructions provided below, make sure that you create a System Restore point first. Once you have that covered, follow the instructions below. Step 1: Tap the Win + R keys to open the Run dialog box and type “cmd” in the field and tap Enter to open the Command Prompt. Step 2: Next, execute this command to launch the Diskpart tool: diskpart Step 3: Execute this second command to view the list of the disks in your computer: list disk Step 4: Now select the disk you want to manage by executing this command: select disk x Note: In the command above, replace “x” with the letter of your disk. Step 5: After that, execute this command to display all the volumes or partitions: list partition Step 6: Now execute this command to select the partition you want to delete: select partition x Note: You have to replace “x” with the partition you want to delete. Step 7: Once done, execute this command to delete the selected partition: delete partition override Step 8: Afterwards, execute this command to merge the OEM partition with the adjoining value: Extend Note: if you only want to merge part of the partition, you need to use this command “extend [size=<size>]”. For instance, you want to extend its size by 5GB, then you need to type “Extend size=5000”. The size you set is the size you select from the OEM partition. This will extend the selected volume by size in MB or megabytes.
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Fix Windows Update Error 0x80240020
There are instances when the Windows 10 installation needs interaction before it reaches the file process. And so if you suddenly encounter the Windows Update Installation Failure 0x80240020 error under the Windows Update History, then you need to get it fixed. When you encounter this kind of Windows Update Error, you will see an error message that says, “The operation did not complete because there is no logged-on interactive user”. This error also indicates the “WU_E_NO_INTERACTIVE_USER” code. To resolve this issue, in this post we’ll walk you through a couple of steps but before you get started, know that you don’t have to run any troubleshooter or delete any file just to fix this error since all you have to do is enable one option that can automatically login with your account and complete the installation for you. With that said, just make sure to only try running Windows Update once you’re told to do so. There are two ways you can enable the option that could resolve the Windows Update Installation Failure 0x80240020 error. One is via Settings while the second one is via Registry Editor.

Option 1 – via Settings

Step 1: Go to Settings > Accounts > Sign-in Options. Step 2: From there, toggle on the “Use my sign-in info to automatically finish setting up my device and reopen my apps after an update or restart” option. Step 3: After that, it will make sure that the interaction part is removed from the Windows Update process. Note: If your device is joined in a domain or if some work or email policies are applied to your device by your company or organization, then you wouldn’t be able to see this option in Settings and that’s where the Registry Editor comes in. Just make sure that you’re logged in as an administrator and that you create a System Restore Point first since registry hacks are sensitive and could highly impact how your computer behaves or functions. Once you have that covered, follow the steps below.

Option 2 – via Registry Editor

Step 1: In the Start search, type “Regedit” and hit Enter to open the Registry Editor. Step 2: Navigate to the following registry key:
HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionWindowsUpdateOSUpgrade
Note: If the above-given registry key does not exist, you can simply create it. All you have to do is right-click on the WindowsUpdate key and then select the New Key option and type “OSUpgrade” as its name. Afterward, create a new DWORD (32-bit) Value and name it “AllowOSUpgrade” and set its value to 0x00000001. Step 3: Restart your computer and check if the error is now fixed. And then try to update your Windows 10 computer again and while you’re at it, make sure that you’re around your computer to interact with the prompts needed to complete the installation process.
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Mapi32.dll Outlook Error - Quick Fix

What is Mapi32.dll Outlook Error?

Mapi32.dll is a Windows Messaging Application Programming Interface that enables Windows to perform various email functions and launch messaging programs like Microsoft Outlook and Microsoft Office. The inability of the interface to execute email functions properly results in the Mapi32.dll Outlook Error. This error occurs mostly when you are attempting to upgrade the operating system to a new version.

Solution

Restoro box imageError Causes

The common causes of the Mapi32.dll Outlook Error during the OS upgrade are:
  • Damaged or Corrupt Outlook user profile
  • The software is overwritten by some other program
  • Outlook PST file corruption
The Mapi32.dll Outlook Error message is displayed in either of the following forms:
  • Mapi32.dll is missing
  • Cannot start Microsoft Office Outlook. Mapi32.dll is corrupt or the wrong version.
  • Mapi32.dll was not found
  • Mail is not installed

Further Information and Manual Repair

So, what if you experience this issue and how do you fix it? Well, first there is no need to panic as Microsoft has recognized this issue and provided adequate solutions to fix this problem in no time. However, to ensure the Mapi32.dll Outlook error is a quick fix, you must first understand the cause of the issue and the message displayed on the screen.
  1. Let’s say the errors occur because your Outlook profile is corrupt. In this scenario, the best solution is to create a new Outlook profile. Regardless of whether you have Windows Vista or XP, to create your new Outlook profile, first, you will have to click on the Control Panel, then User Account, and then Mail. Once you click on the Mail tab, the mail set up dialog box will open. In this dialog box there will be a ‘Show Profiles’ tab, click and then click the Add tab that appears next. Now type the name for your new Outlook profile and then click ‘OK’. After that, add an email account to go with the profile.
  2. If Mapi32.dll is missing or corrupt, you will have to run ‘Fixmapi.exe’ to resolve the problem. It is located in the System32 folder inside the Windows directory in Windows Explorer.
  • Therefore, first start Windows Explorer and then locate the following folder on your computer: C: /Program Files/Common Files/System/Msmapi1033
  • Now find Fixmapi.exe and double click it
  • After that locate the Mapi32.dll file and rename it to MSmapi32.old and press enter.
  • Restart your computer when finished.
A word of advice for computer users is to scan for viruses with an antivirus program or a registry cleaner regularly to prevent the Mapi32.dll Outlook error from occurring in the first place. Viruses often latch onto .dll files and corrupt them. It’s always best to have a forward-looking approach.
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Fix rtwlane.sys Blue Screen error in Windows
This post will walk you through fixing the rtwlane.sys Blue Screen error. This kind of BSOD error belongs under the category of the “DRIVER IRQL NOT LESS OR EQUAL” Stop errors. If you encounter this kind of Stop error then it means that a kernel-mode driver tried to access pageable memory at a process IRQL that was too high. The main issue with the rtwlane.sys Blue Screen error has something to do with the Realtek PCI-E Wireless LAN PCI-E NIC driver. In other words, it has some issues with the wireless card of your computer which is built by Realtek. And since it this error concerns your wireless card, you might also experience some connectivity problems with your computer as the wireless card refuses to find any network connections and even randomly disconnects. To resolve this problem, you need to refer to the given options below.

Option 1 – Run the Blue Screen Troubleshooter

The Blue Screen troubleshooter is a built-in tool in Windows 10 that helps users in fixing BSOD errors like rtwlane.sys Blue Screen error. It can be found on the Settings Troubleshooters page. To use it, refer to these steps:
  • Tap the Win + I keys to open the Settings panel.
  • Then go to Update & Security > Troubleshoot.
  • From there, look for the option called “Blue Screen” on your right-hand side and then click the “Run the troubleshooter” button to run the Blue Screen Troubleshooter and then follow the next on-screen options. Note that you might have to boot your PC into Safe Mode.

Option 2 – Try to update or rollback your Network driver

If you have updated the driver software as of late and you suddenly got this BSOD error, you might have to roll back the device driver – in other words, switch back to the previous working version. To do that, follow these steps:
  • Tap the Win + R keys to launch the Run window and then type in the “MSC” command and hit Enter to open the Device Manager window.
  • Under the Device Manager, you will see a list of drivers. From there, look for the Network Adapters and expand it.
  • From the list of Network Drivers, look for “Realtek <Model> Wireless LAN 802.11n PCI-E NIC” and then right-click on it and select Update Driver.
  • Restart your PC and see if it helped in fixing the BSOD error.
Note: If you see any of the following entries under the Network drivers, you might want to download their latest available versions from each one of their manufacturer’s websites.
  • Realtek High-Definition (HD) Audio Driver
  • Realtek Card Reader Driver
  • Realtek Local Area Network (LAN) Driver
On the other hand, if updating the Network driver didn’t help, you can also try to roll back to its previous version.
  • Open the Device Manager again and then look for Network Drivers.
  • Next, select Realtek <Model> Wireless LAN 802.11n PCI-E NIC from the list of Network Drivers and then double click to open a new mini window.
  • After that, make sure that you’re on the Driver tab and if you are not, just navigate to it then click the Roll Back Driver button to switch back to the previous version of the Realtek driver.
  • Now restart your computer to successfully apply the changes made.

Option 3 – Try running the System File Checker Scan

The SFC or System File Checker scan could detect and automatically repair damaged system files that could be causing the Netwtw04.sys failed BSOD error. SFC is a built-in command utility that helps in restoring corrupted files as well as missing files. It replaces bad and corrupted system files with good system files. To run the SFC command, follow the steps given below.
  • Tap Win + R to launch Run.
  • Type in cmd in the field and tap Enter.
  • After opening Command Prompt, type in sfc /scannow
The command will start a system scan which will take a few whiles before it finishes. Once it’s done, you could get the following results:
  1. Windows Resource Protection did not find any integrity violations.
  2. Windows Resource Protection found corrupt files and successfully repaired them.
  3. Windows Resource Protection found corrupt files but was unable to fix some of them.
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4 Ways of keeping drivers updated
Windows is one of the most popular operating systems in today's world. Plenty of software and plenty of hardware is working on it without any issues. In order for Windows to deal with this ever-growing hardware and in order for hardware manufacturer's to have stable products in the Windows environment is accomplished via Drivers. A driver is a small piece of software whose sole purpose is to control and communicate with specific hardware and create a bridge between it and Windows itself. it is made in such a way that even if it brakes the rest of the operating system will continue working uninterrupted. Having updated drivers means better performance and better stability for device performance so it is crucial to have the latest drivers installed. Outdated drivers can also lead to some security issues which could be exploited by malicious applications. Here, in today's article, we are presenting you with 4 ways on how to keep your drivers updated and tidy for best performance and stability. The list goes from the most simple way to the most complex and time-consuming one.
  1. Use one-click solution, DRIVEFIX

    The most simple and most straightforward solution, install DRIVEFIX, and with only one click on a mouse button, you can have all drivers fixed and updated. This application is made for this purpose and it is doing its job pretty well.
  2. Update Windows

    Windows updates come with new drivers for new hardware and with newer versions of existing ones, do update on regular basis and you should have all of your drivers up to date.
  3. Download drivers from the manufacturer's website

    Go to the manufacturer's website for your device and download and install the latest driver package.
  4. Use device manager to update drivers

    Go to the device manager and right-click on the device which you would like to update the driver. Choose update device driver.
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PUP - Driver Pro complete removal guide

Driver Pro Description

DriverPro is a program developed by PC Utilities Pro. This program is often found bundled in other installations.

From the author: PC Utilities Pro is a leading software development company founded in 2009. As a group of young enthusiastic programmers, we constantly strive in creating powerful, yet easy-to-use solutions that would enable even the most basic computer users to keep their PCs running like new.

When installed, DriverPro will add registry entries for the current user that allow it to run each time to computer is started. It will also add a scheduled task in Windows, that allows it to run at various times. The optimizing nature of the application allows it to access any file and information on your computer without your knowledge.

Multiple anti-virus programs have marked this application as a Potentially Unwanted Program, and it is not recommended to keep it on your computer.

About Potentially Unwanted Applications

Have you ever discovered an unwanted program running on your PC and wondered exactly how the heck it got there? A PUA / PUP (potentially unwanted application / potentially unwanted program) is a software program that comes bundled with freeware/shareware and you agree to install on your computer. These are programs you certainly don’t want on your computer since it doesn’t provide any useful service. Despite being regarded very dangerous, PUPs aren’t necessarily computer viruses or malware What makes a PUP different from malware is the fact that whenever you download one, you are doing it with your consent – though in most instances unwittingly and unwillingly. PUPs might not be malware but still, they’re harmful programs to your computer. At best, these unwanted applications provide hardly any benefit, and at worst, they could be quite damaging to your computer.

What do PUPs do on your computer, really?

Most Potentially Unwanted Programs will come in the form of adware, which typically aims to exhibit numerous irritating pop-up ads, banners, coupons, and bargains on websites you go to. PUPs that come as browser add-ons and toolbars are readily identifiable. They’ll track your online activities, redirect your search results to unsafe websites where spyware and adware can be downloaded, hijack your home page, and slow your internet browser down to a crawl. PUPs load up a dangerous bite if kept unchecked. They will often include things like information gathering program code which could gather and send your sensitive information back to 3rd parties. These are programs that don’t really do anything good for you; in addition to occupying space on the hard drive, they also slow down your PC, often alter settings without your authorization, the list of annoying features goes on and on.

Great tips on protecting yourself from unwanted software

• When setting up anything on your computer system, always study the fine print, like the license agreement. Don’t accept terms of use that are for bundled programs. • Only Use the “custom” or “manual” install method – and never blindly click Next, Next, Next. • Use an advert blocker/pop-up blocker; Install anti-malware products such as Safebytes Anti-malware. These software programs could establish a wall between the computer and cybercriminals. • Think twice before you decide to download any type of freeware or shareware. Just before adding a plug-in or web browser extension, think about whether it is really necessary. • Only download programs from the original providers’ websites. Avoid download portals because they use their very own download manager to pack extra programs along with the initial download.

Help! Malware Blocking Anti-virus Installation And Access To The Web

All malware is bad, but certain kinds of malicious software do a lot more damage to your computer than others. Some malware is meant to hinder or block things that you wish to do on your computer. It may well not allow you to download anything from the net or it will stop you from accessing some or all websites, particularly the anti-malware sites. So what you should do if malware prevents you from downloading or installing Safebytes Anti-Malware? Do as instructed below to get rid of the malware in alternate ways.

Get rid of malware in Safe Mode

The Windows operating system has a special mode known as “Safe Mode” where just the bare minimum required programs and services are loaded. In the event, the virus is set to load automatically when the PC starts, shifting to this mode may well prevent it from doing so. To start the computer into Safe Mode, press the “F8” key on the keyboard just before the Windows boot screen appears; Or right after normal Windows boot up, run MSConfig, check the Safe Boot under the Boot tab, and click Apply. After you restart into Safe Mode with Networking, you could download, install, and update the anti-malware program from there. Now, you are able to run the anti-virus scan to eliminate computer viruses and malware without any interference from another malicious application.

Switch to some other internet browser

Web-based viruses could be environment-specific, aiming for a particular internet browser or attacking particular versions of the browser. If you appear to have malware attached to Internet Explorer, then switch over to a different internet browser with built-in safety features, such as Firefox or Chrome, to download your favorite antivirus program – Safebytes.

Run anti-virus from your USB drive

Another way is to download and transfer an anti-malware program from a clean computer to run a scan on the affected system. Adopt these measures to run the anti-malware on the infected computer system. 1) On a clean computer, download and install Safebytes Anti-Malware. 2) Plug the pen drive into the uninfected computer. 3) Run the setup program by double-clicking the executable file of the downloaded application, which has a .exe file format. 4) Select the USB flash drive as the location when the wizard asks you where you intend to install the software. Follow the activation instructions. 5) Remove the flash drive. You may now utilize this portable antivirus on the infected computer. 6) Run the Safebytes Anti-malware directly from the flash drive by double-clicking the icon. 7) Press the “Scan” button to run a full system scan and remove viruses automatically.

Detect And Remove Viruses With SafeBytes Anti-Malware

Want to download the very best anti-malware software for your laptop or computer? There are many applications available that come in paid and free versions for Microsoft Windows computers. A few are worth your money, but many aren’t. You need to pick a company that creates industry-best antimalware and has earned a reputation as reliable. Among few good programs, SafeBytes Anti-Malware is the strongly recommended software for the security-conscious end user. Safebytes is one of the well-established PC solutions firms, which provide this complete anti-malware software program. This software program can easily detect, remove, and protect your computer from the most advanced malware intrusions such as adware, spyware, trojan horses, ransomware, parasites, worms, PUPs, along with other potentially harmful software applications. SafeBytes anti-malware offers a plethora of advanced features that set it apart from all others. The following are some of the good ones: Real-time Protection: SafeBytes provides complete and real-time security for your personal machine. It will regularly monitor your computer for hacker activity and also gives users superior firewall protection. Best AntiMalware Protection: This deep-cleaning anti-malware program goes much deeper than most antivirus tools to clean out your computer system. Its critically acclaimed virus engine finds and disables hard to remove malware that hides deep within your PC. Web Protection: SafeBytes gives an instant safety rating about the web pages you are about to check out, automatically blocking unsafe sites and ensuring that you are certain of your safety while browsing the world wide web. Fast Scan: SafeBytes Anti-Malware has a multi-thread scan algorithm that works up to 5x faster than any other antivirus software. Very Low CPU and RAM Usage: This software program is not “heavy” on your computer’s resources, so you’ll not notice any overall performance problems when SafeBytes is operating in the background. Fantastic Tech Support Team: You will get 24/7 technical assistance to promptly resolve any issue with your security application.

Technical Details and Manual Removal (Advanced Users)

To remove Driver Pro manually, navigate to the Add/Remove programs list in the Control Panel and choose the offending program you want to get rid of. For web browser plug-ins, go to your web browser’s Addon/Extension manager and select the add-on you want to remove or disable. You may also want to reset your web browser settings, as well as clear your web browser cache and cookies. Lastly, check your hard disk for all of the following and clean your registry manually to remove leftover application entries after uninstalls. Please note that only professional computer users should try to manually edit the system files mainly because removing any single vital registry entry leads to a major problem or even a computer crash. Also, certain malware is capable of replicating itself or preventing its removal. Carrying out this in Safe Mode is suggested.
Files: %Program Files%\Driver Pro\Driver Pro.exe %UserProfile%\Desktop\Driver Pro.lnk %UserProfile%\Start Menu\Driver Pro\Driver Pro.lnk %UserProfile%\Start Menu\Driver Pro\Help.lnk %UserProfile%\Start Menu\Driver Pro\Registration.Lnk Registry: HKEY_CURRENT_USER\Software376694984709702142491016734454 HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run 13376694984709702142491016734454
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Device frequently disconnects from hotspot
As you know, Windows 10 comes with the option to create Mobile Hotspot for other devices. This allows you to share your Ethernet connection. However, there are times when one of your devices might fail to reconnect to the mobile hotspot again. For instance, you moved out of the Wi-Fi range because you have somewhere to be and whatnot and when you’re back you find that you are now unable to reconnect to the Windows 10 Hotspot or the shared network. Although you can always restart the mobile hotspot to resolve the problem, however, it might only be a temporary fix. So in this post, you will be given options for a much better solution to the problem. This kind of problem seems unusual and does not occur that often. To fix it, you can try to set up DNS on your Windows 10 device and then configure the settings on the mobile device. It seems that what’s happening here is that the mobile device is unable to lock on to the Mobile Hotspot when the IP address changes for some reason.

Option 1 – Try changing the DNS settings on your laptop

In this option, you need to make sure that IPv4 and IPv6 are selected on your Ethernet connection. You also have to change the Preferred DNS server as well as the Alternate DNS server to 8.8.8.8 and 8.8.4.4, respectively. You also have to validate the settings before you exit just to ensure that you’ve entered everything correctly. After that, open Command Prompt and run the ipconfig command and then take note of the IP address, Gateway DNS 1 and DNS 2.

Option 2 – Try changing the Wi-Fi settings on your mobile device

This option should be mostly the same on all your mobile devices. And given that OEMs build their customization and skin, you might have to fiddle around a little to get the settings. Refer to the steps below to change the Wi-Fi settings:
  • Go to the Settings of your mobile device and tap on Wi-Fi.
  • Then click the Mobile Hotspot connection that you’ve created on your laptop.
  • After that, input the password and tap the Advanced options.
  • From there, tap on IP settings and select the Static option instead of DHCP.
  • Now you have to enter the IP address, Gateway, DNS 1, and DNS 2 of the laptop you’ve taken note of earlier and that’s it.
Note: If you are already connected to the Mobile Hotspot, long press on the Wi-Fi network and select the Modify Network option and then follow the steps given above to change from DHCP to static. Once you’re done, your mobile device should now be able to connect to the Windows 10 Mobile Hotspot all the time.
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CHKDSK cannot continue in read-only mode
As you know, the CHKDSK utility is proven to be one of the useful tools to fix any issues that concerns file system, storage, and disk. However, as useful as it may be, it is still not immune to issues as you could encounter errors when running it. One of these errors is the “One such error is the CHKDSK cannot continue in read-only mode” error. If you receive such an error message while running CHKDSK, then you’ve come to the right place as this post will help you sort the problem out. It is possible that the drive is read-only or that the Write Protection is enabled. It could also be that the drive is already being used and scanned by a different program or utility. To get rid of this error, there are a couple of suggestions you need to check out. You can try to run the CHKDSK utility from Recovery or run it on Boot. You could also try to disable Write Protection. For more detailed steps, follow the given instructions below.

Option 1 – Try to run the CHKDSK utility from Recovery

The first thing you can do to resolve the error in CHKDSK is to run the CHKDSK utility from Recovery. How? Follow these steps:
  • First, boot into the installation environment for Windows 10 from a Windows installation media.
  • Next, click on the “Repair your computer” option.
  • After that, select Troubleshoot > Advanced options > Command Prompt.
  • After opening Command Prompt, type this command and tap Enter: chkdsk <Partition Letter>: /r /f
  • Wait until the disk error checking process is completed.
  • Once it’s done, exit the Command Prompt window and restart your computer and then see if the error is fixed.

Option 2 – Try running the CHKDSK utility on Boot

On the other hand, you can also try to run the CHKDSK utility on Boot so you can fix the error and recover any damaged segments of the drive.
  • Open an elevated Command Prompt and enter this command: chkdsk /r
  • After that, you will a message that says, “Chkdsk cannot run because the volume is in use by another process. Would you like to schedule this volume to be checked the next time the system restarts? (Y/N)”
  • Type Y and tap Enter to schedule a CHKDSK scan once your computer reboots next time.

Option 3 – Try to remove the Write Protection from the drive

As mentioned, removing the Write-Protection on the concerned drive could also help you fix the problem and there are two ways to get rid of the write protection – you can either use the Diskpart utility or the Registry Editor. How? Refer to the following steps.

Via Diskpart utility:

  • Open Command Prompt with admin privileges and then type the “diskpart” command and tap Enter to execute it.
  • Next, type “list disk” and tap Enter to get the list of all the Disk connects or all the partitions that are formed on those disks.
  • After that, you need to choose one command depending on the list of commands you entered. Type “select disk #” and tap Enter to select the disk or partition you want to select.
  • Then type “attribute disk clear readonly” and tap Enter to Disable the Write Protection on the selected disk or partition.

Via Registry Editor:

  • Tap the Win + R keys to open the Run utility and type “Regedit” in the field and then tap Enter to open the Registry Editor.
  • Next, navigate to the following registry key:
ComputerHKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlStorageDevicePolicies
  • After that, look for the DWORD named “WriteProtect” and double click on it, and then set its Value Data to “0”.
  • Now restart your computer and see if the problem is now fixed or not.
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