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.

10 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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A 3 Step DIY Guide to Repairing Error 501

Error 501 - What is it?

Error 501 is an error code that sometimes may occur while you are using Internet Explorer on your Windows PC. The error message is displayed as:

'Error 501: Not implemented or not supported.'

Solution

Error Causes

It is difficult to narrow down the ultimate cause of error 501. This is because this error code can be triggered by multiple reasons such as:

Third-party confliction or due to an incorrect HTTP 1.1 setting
Improper program installation
Changes in the “LocalAccountTokenFilterPolicy” registry key
Corrupted Registry Database

Further Information and Manual Repair

The occurrence of this error regardless of what the cause is may cause a lot of inconvenience to you. And if not fixed on the time it can lead to system failure too. To repair the error 501, identifying the cause for the error really helps. By identifying the cause, you can easily select the most suitable solution to fix it.

Let us walk you through the solutions to fix error 501 timely:

Cause: Third-party conflicts or due to an incorrect HTTP 1.1 setting

Solution: If the above cause is the reason for error 501, this means the Local Policy Rights Settings have been altered. And because of that, Windows is not running your desired program. To solve this error simply log on to Windows as an administrator. Then run local computer policy snap-in. Open it and click on the computer configuration. Here you will see the Windows settings option. Click on it and then open security settings, local policies, and click on properties. Now in the add users section select the user which you want to add to the policy and save by pressing OK. After you’ve made changes, now try using internet explorer again. If this is the cause for the error pop, the error will not occur. If it still occurs then this means there is some other underlying cause for the error. Read on to find out.

Cause: Improper Program Installation

Solution: Error 501 may also occur due to improper program installation. The best way to resolve it is to uninstall recently installed programs.

Cause: Changes in the “LocalAccountTokenFilterPolicy” registry key

Solution: Sometimes during installation registry keys also get damaged or changed. If changes in the LocalAccountTokenFilterPolicy” registry key is the issue, then you need to alter the registry key ‘LocalAccountTokenFilterPolicy settings and its value. This key inside the registry database allows Windows to control the various access options that you have. However, due to wrong settings, it denies access and shows error 501 when you open Internet Explorer. To alter registry key settings can be tricky and complex if you are not a computer programmer. In such as scenario it is advisable to download Restoro. This is a user-friendly and multi-functional repair tool embedded with a powerful register cleaner. In addition to this, it also functions as anti-virus and a system optimizer.

Restoro Solution

Restoro is simple and easy to use. To operate this tool on your PC and to reset registry settings you don’t need any technical expertise or sound knowledge. Its smooth navigation makes it easy for users to scan and repair errors like 501 due to registry misconfiguration in seconds. With this helper, you don’t have to modify Windows registry settings manually. It will do it automatically. Furthermore, if Error 501 is triggered by a corrupted registry database, you can run it to repair this issue too. It cleans and wipes out all the unnecessary and obsolete files that could be corrupting your registry. This includes junk files, internet history, and invalid registry entries. It clears up your hard disk space and repairs your corrupted registry. If your PC’s registry is damaged due to malicious software like viruses and malware, then it uses advanced antivirus to remove them from your system. It has a value-adding backup feature that enables you to create a backup of your files for data safety and recovery in case of loss during repair. Restoro is compatible with all Windows versions.

Starting with Restoro

Here are 3 simple steps to get started:

Click here to download Restoro.
Once the installation is complete, run it to scan for errors
After scanning the errors, simply click repair to resolve the issues including the error code 501.

Along with fixing error code 501 triggered by registry damage, it also repairs all other PC-related issues. It helps maintain a stable and error-free system for the longest time.

Disabling Auto Update in Chrome & Firefox

As you know, all the web browsers come with the support of auto-updates which include both Google Chrome and Mozilla Firefox. However, with these updates, the browser comes with the support of a new web APIs and better rendering. Although there could be a lot of problems that may arise due to these updates. These problems consist of depreciation of features, incompatibility with some websites, to name a few. It includes incompatibility with some websites, depreciation of features, and more. This might push someone to stop the auto-updates of these web browsers. So, in this guide, we will be checking out how to stop auto-update in Google Chrome and Mozilla Firefox on Windows 10. Thus, if you want to be rid of these issues, then you can disable the Chrome & Firefox auto-update and you can do that by either using the Windows Services Manager and the System Configuration utility.

Option 1 – Disable Chrome & Firefox auto-update via Windows Services Manager

The first thing you can do to disable the Chrome auto-update is through the Windows Services Manager. To do so, follow these steps:

First, tap the Win + R keys to open the Run dialog box.
Next, type “services.msc” in the field and hit Enter to open the Windows Services Manager.
After that, you will see a list of services and from there, look for the Google Update Services (gupdate) and Google Update Service (gupdatem).
Once you find these services, right-click on each one of them and select Properties and then make sure that the Service Status is set to be Stopped.
You should also select the Startup Type to Disabled and click on the Apply and OK buttons.
Now restart your computer. This should stop the automatic update of the Chrome browser.

Option 2 – Disable Chrome & Firefox auto-update via System Configuration utility or MSConfig

Tap the Win + R keys to open the Run utility and type “msconfig” in the field and tap Enter to open the System Configuration.
After that, go to the Services tab and uncheck the two entries, namely Google Update Service (gupdate) and Google Update Service (gupdatem).
Next, click on the Apply and OK buttons to save the changes made.
Restart your computer.

Note: Now that you’ve stopped the auto-update in Firefox, it’s time for you to stop the auto-update in Mozilla Firefox. To get started, follow the steps below.

Open the Mozilla Firefox browser and click on the hamburger menu located on the top-right portion of the screen.
After that, select Options and under the General panel and then go to the Firefox Updates section.
Next, click on the radio button for updates but select the option to let you install them.
You also have to uncheck the options named “Use a background service to install updates” and “Automatically update search engines”.
Once done, restart the Firefox browser. This should stop the automatic update.

Microsoft vs Google & Facebook

Microsoft wants to escalate the situation from Australia to the EU, what a surprise. Hello all and welcome to another news article, this time we are focusing on Microsoft pushing the EU to accept law proposition from Australia. For all of you who are not familiar with the given situation let me quickly explain. The feud began when the Australian government proposed a new law that targeted Facebook and Google specifically. The government said that it believed that both of the tech giants were using content from news outlets without paying. Have you ever seen the little news snippets that Google or Facebook sometimes show its users to keep them up to date? These are lifted directly from news websites, and the Australian government claimed that this practice meant that people didn't bother visiting the news website. This then staved news websites of revenue. As such, the government put forward a new law that would mean Google and Facebook would have to pay the source website for every time they displayed a news snippet. Facebook responded by removing its Australian news coverage in light of the law. Google, however, put up a fight. It argued that its snippets encouraged people to click on it to read more, thus driving more traffic to the news website. It also said that such a law would be too expensive to maintain in the long run. As such, Google threatened to remove itself from Australia if the law passed. This was likely a scare tactic, as 95 percent of Australian web users use Google; however, it actually opened the door for its rival, Microsoft. Microsoft saw how it could push its own search engine BING to replace google. It of course went and reached the Australian government to assure them that BING is more than capable to fulfill its needs and fully abide by the proposed law. Now Microsoft knows that if this law passes it could see a similar situation happening in Europe and it is pushing it. US News reported on how Microsoft plans to encourage EU countries to adopt this new law too. The company has teamed up with the European Publishers Council and News Media Europe to make the following statement: Publishers might not have the economic strength to negotiate fair and balanced agreements with these gatekeeper tech companies, who might otherwise threaten to walk away from negotiations or exit markets entirely

How to Fix Error 3

What is Error 3?

This is a type of Google Chrome update error code. It indicates a failure to communicate with Google update. The error code is displayed in the following format:

‘Update server not available (error: 3)’

Solution

Error Causes

Error 3 may be triggered by several reasons. These include:

You are running Vista/ 7 and you have configured Google Chrome to run as an administrator
Google Update is not registered properly
Registry issues

Further Information and Manual Repair

Here are some of the best and effective DIY methods to resolve error 3 on your PC without any professional help. You don’t need to be a technical whiz to try these methods.

Method 1

If the reason for the error cause is related to Google Chrome configured as administrator on your PC, then simply run it as a normal user. This is a common issue with Google Chrome auto-updating mechanism.

Method 2

If the problem still persists, then it is advisable to try re-installing Google Chrome. To do this, first, uninstall Google Chrome. Go to the start menu, control panel, and then program and features. Choose Add and Remove Programs and uninstall Google Chrome. To activate changes, reboot your system. Now reinstall Google Chrome by downloading it from Google Chrome’s official website.

Method 3

If error 3 is triggered because Google Chrome is not registered properly, then try this method to fix the issue.

First, verify that GoogleUpdate.exe exists in the location specified in the Windows Registry Editor. For this, go to the Start Menu and then type Regedit in the search bar.
Now click OK. The registry editor will appear. Now in the tree view on the left, navigate to the following directory:
HKEY_CLASSES_ROOTCLSID{2F0E2680-9FF5-43C0-B76E-114A56E93598}LocalServer32
Make sure the default value corresponds to the location of your GoogleUpdate.exe or GoogleUpdateOnDemand.exe file. Also, verify that these files are located in the given path.
For instance, if they are located in different locations, then right-click the default value and select Modify.
Enter the correct file path and use double quotation marks for example "C:\Documents and Settings%USERNAME%Local SettingsApplication DataGoogleUpdateGoogleUpdate.exe(or GoogleUpdateOnDemand.exe)"

Method 4

Error 3 may also pop up because of registry issues. These issues occur when the registry gets overloaded with obsolete and unnecessary files like cookies, internet history, bad entries, and junk files. In such an event, it is advisable to download Restoro This is a user-friendly and cutting-edge PC Fixer embedded with a registry cleaner. The registry cleaner removes all the obsolete files instantly and repairs the damaged registry thereby resolving all errors including error 3. Click here to download Restoro and resolve error 3.

Quick Fix Guide for STOP 0x00000014 Error

What Is STOP 0x00000014 Error?

0x00000014 error is actually an error that is always displayed on a STOP message.

It is also known as Blue Screen of Death, abbreviated as BSOD. When this error occurs, the message that is displayed to the user either says ‘STOP: 0x00000014’ or states ‘CREATE_DELETE_LOCK_NOT_LOCKED’. It is crucial to fix this error to ensure your program is functioning appropriately. If this error message is not rectified, you might be opened to other error messages, such as error code 0x000000d1.

Solution

Error Causes

As far as the causes of STOP 0x00000014 error are concerned, this error usually occurs when a device driver or hardware problem occurs. This error may also occur if users attempt to run some specific application or update or modify an existing application. When a 0x00000014 error occurs, the operating system restarts to disable the PC from performing any further.

Without taking into consideration the causes of its occurrence, it is crucial to make sure that the 0x00000014 error is fixed as soon as possible to eliminate any undesired inconvenience in the future.

Further Information and Manual Repair

A lot of times when an operating system tries to recover from the STOP 0x00000014 error, the user is prompted that Windows has recovered from an unexpected shutdown.

However, if Windows fails to recover on its own, manual repair has to be performed.

While there are several ways this error can be fixed, some of the most effective and efficient ways of troubleshooting the 0x00000014 error are listed below as follows.

Restart your computer. Often simply restarting the computer can help eliminate the problem.
If restarting the system doesn’t help, find if you have recently modified or altered any hardware or driver. It is possible that the 0x00000014 error has been caused by the recent modification. Undo the changes and find out if the error occurs again. If it doesn’t, it is highly likely the issue has been resolved.

However, if the error persists, some solutions that may work are outlined below.

Start your system using the Last Known Good Configuration. This will undo any changes in the driver and recent registry.
Another solution is to manually perform System Restore. This will also return the system back to its former state.
Another idea that my work is to use roll back the device driver. When the driver will return to its previous version, the problem will easily be resolved.

To keep the 0x00000014 error from occurring in the future, it is advised to unplug any newly installed hardware or reinstall any deleted software.

If you're not tech-savvy and wish to get this error code rectified in a jiffy, download a powerful automated tool and perform a computer scan.

Fix Boot Device Not Found 3F0 Error

Today we will be solving the Device not found 3F0 error which is a common error, especially among HP (HP Pavilion G6), Lenovo, Acer, and Dell laptops/desktops. This error occurs when the computer is turned ON and when the system is about to boot. It can happen on windows 7, 8, or 10. When a mentioned error occurs one of the following messages will be displayed on your screen:

“No bootable device – insert boot disk and press any key”
“No Boot Device Found. Press any key to reboot the machine”
“Boot Device Not Found. Please install an operating system on your hard disk. Hard Disk (3FO)”
“No boot device is available”

The most common reasons for 3F0 error to occur is:

Using the unbootable device or disk to boot from.
If the bootable hard drive you are using might have corrupted or damaged somehow.
MBR or boot sector is damaged on the bootable hard drive.
If your system has gone through a virus or malware attack.
The wrong boot order in the BIOS.
Hard disk connection problem.
System files or boot files unknowingly damaged.
Corrupt hard drive partitions.

Now all of these being said let us go through some of the solutions and fix this dreaded error in order to get your computer back in working order:

1: Change Boot Order

This is well, the most simple solution and the easiest one, try to change the boot sequence in the BIOS settings of your motherboard. Sometimes most easier solutions can provide great results and solve our problems. If sadly this fails and the issue persists move to the next solution.

2: Perform a Hard Reset

Performing hard reset can often solve issues, to perform a hard reset do the following:

Turn off the computer and unplug the power adapter. If there is a removable battery, it should also be removed.
Then disconnect all peripherals, including the removable hard drive, etc.

then

Press and hold the power button for 15 seconds to drain all remaining power.
Insert the battery, and then re-plug the AC adapter into the laptop.
Press the power button to turn on the computer.
Once the computer starts up properly and the startup menu appears, use the arrow keys to select “Start Windows normally” and then press Enter.

Reconnect everything back of your peripherals. If by any chance problem still persists follow the next step:

3: Test Hard Drive Using HP Diagnostic Tool

Use the built-in tool in the Hp device to solve the issue:

Turn on your computer and keep pressing the Esc key until the menu appears on the screen.
Next, press the F2 key.
Choose the Components Tests option from the HP PC Hardware Diagnostics menu.
Select Hard Drive from the Component Tests menu.
Click on the Quick Test, then click on the Run once button.
If there are still any issues with your hard drive, then run the Extensive Test.

4: Restore BIOS Default Settings

Press the Power button to start the computer, and immediately after this, repeatedly press the F10 key to enter the BIOS setup menu.
To load and restore BIOS Setup Default settings, press F9 on the BIOS setup menu.
Once loaded, press F10 to Save and Exit.
Select yes, and then press Enter when it says Exit Saving Changes.

5: Reconnect Your Hard Drive

Turn the computer off and remove the power cable.
If you have a removable battery, take it out
Disconnect your hard drive and then connect it back.
Reassemble your computer and turn the computer on to see if it fixed the issue.

6: Fix and Rebuild Damaged MBR

Boot from the original installation DVD (or the recovery USB)
At the Welcome screen, click Repair your computer.
Choose Troubleshoot.
Choose Command Prompt.
When the Command Prompt loads, type the following commands: bootrec /FixMbr bootrec /FixBoot bootrec /ScanOs bootrec /RebuildBcd.

7: Fix Operating System

Prepare a Windows installation disc, CD/DVD or USB flash drive and connect it to your PC.
During the installation process, launch Command Prompt.
In Windows 7, under the System Recovery Options tab, click Startup Repair.
In Windows 8 and Windows 10, click Repair your computer, then select Troubleshoot > Advanced options > Automatic Repair (Windows 8) or Startup Repair (Windows 10).

8: Replace the Hard Disk

Guide to Fixing Error 0x800CCC0E

Error Code 0x800CCC0E - What is it?

The error code 0x800CCC0E is an Outlook error that appears while using either Microsoft Outlook or Outlook Express. The error message hampers your ability to send and receive emails.

Solution

Error Causes

0x800CCC0E Outlook error code is triggered by multiple reasons including:

Improper connection with SMTP (Simple Mail Transfer Protocol) server
Damaged files
Registry corruption

In most cases, it’s the registry that gets corrupted which leads to the occurrence of 0x800CCC0E error code display. This typically happens when you try to update your Outlook/Outlook Express version. When updating, you need to remove all the software files of the previous Outlook version which includes the registry too. If the files are not removed from the registry, the new version update will often fail. The junk files of the old version are likely to damage and corrupt the registry.

Further Information and Manual Repair

It is advisable to repair the error code 0x800CC0E right away to avoid inconvenience and system failure and fatal crashes which can lead to valuable data loss.

Cause: Improper connection with SMTP (Simple Mail Transfer Protocol) server

Solution: If the cause of the 0x800CCC0E is SMTP server connection failure, then the best way to resolve the error is to reconfigure your email account settings. Make sure that port 25 is being used in the SMTP area. Port 25 is the standard outgoing mail port. If the SMTP setting is on port 25 then another reason for the error 0x800CCC0E can be your anti-virus or firewall software enabled on your PC. Turn it off for a moment and then try sending emails from your Outlook.

Cause: Damaged Files and Registry Corruption

Solution: If the error code is triggered due to registry corruption and file damage, then the best way to resolve it is to download Restoro. Restoro is a safe, efficient, and highly functional inbox cleaner and a system optimizer embedded with numerous powerful utilities designed to repair multiple PC-related errors including the error code 0x800CCC0E when triggered by registry corruption. This cutting inbox cleaner scans your PC entirely and detects all the unnecessary and malicious files saved in your system’s registry like junk files, internet history, invalid entries, and files of the uninstalled programs. These files take up most of the registry disk space thus causing the registry files to get damaged and corrupt and triggering error codes like 0x800CCC0E. With the help of Restoro, you can easily wipe out all such files from your system in just one click. After scanning for errors all you need to do is click the repair tab to make your registry disk clutter-free. Once the clutter is removed, update the new version of the Outlook/ Outlook Express again on your system and then try sending emails. You’ll see two noticeable differences after repairing your PC with Restoro. One is that you will be able to install the new version and send emails smoothly from your Outlook account without any 0x800CCC0E error pop-ups. And the second difference you’ll see is the change in your PC performance. This tool optimizing your PC speed and reduces boot time. This tool is very simple and easy to use. It has a neat design layout and a user-friendly interface which makes it easy for all levels of users to use Restoro smoothly with zero complexity. In just a few clicks the error message 0x800CCC0E is resolved. What makes this tool a favorite among users is that it does not require any skills or technical know-how. To get started here’s what you need to do:

Click here to download Restoro software on your PC
Once the download is complete, run it to scan for 0x800CC0E error
After the scanning is successfully complete, click on the Repair button to fix the error right away.
Then install the new version of Outlook/ Outlook Express again on your system

Fix An unspecified error 0x800700b7

If you receive an error that says, “An unspecified error occurred during System Restore (0x800700b7)” when you tried to restore your Windows 10 PC, worry not, for this post will help you resolve the problem. This kind of error typically occurs when System Restore was not completed successfully and fails instead with this error. Before you start, you must not abruptly shut down your computer and wait for the error to occur. You may receive this error due to many possible reasons. It could be caused by your antivirus program that’s not letting the process complete or corrupted system files which causes the failure or it could also be caused by an unsuccessful installation of a Windows Update. Here are some fixes you can check out if you can still boot into your computer:

Option 1 – Try to disable your antivirus program

Disabling the antivirus program or any security software installed in your computer is always a good idea you can try when the System Restore process does not go smoothly. So before you try updating your computer again, make sure to disable the antivirus or security program and then run System Restore again, don’t forget to enable the antivirus program back again.

Option 2 – Run the DISM tool

The next thing you can do is run the DISM tool. This tool is known to repair potentially corrupted files in your system as having them could also system issues like the blank dialog boxes. To repair these corrupted system files, you can run the DISM commands:

Tap the Win + X keys and click on the “Command Prompt (Admin)” option.
After that, input each one of the commands listed below sequentially to execute them:
- Dism /Online /Cleanup-Image /CheckHealth
- Dism /Online /Cleanup-Image /ScanHealth
- Dism /Online /Cleanup-Image /RestoreHealth

Once you’ve executed the commands given above, restart your computer and check if the problem is now fixed.

Option 3 – Run the System File Checker

System File Checker or 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 to good system files that might be the cause why you’re getting the errors 0x8024a11a and 0x8024a112. To run the SFC command, follow the steps given below.

Type “cmd” in the Start search and then right-click on the appropriate search result.
Next, select “Run as administrator” to open Command Prompt with admin privileges.
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:

Windows Resource Protection did not find any integrity violations.
Windows Resource Protection found corrupt files and successfully repaired them.
Windows Resource Protection found corrupt files but was unable to fix some of them.

Now restart your computer and see if the problem is fixed or not.

Option 4 – Try to run the System Restore in a Clean Boot State

If the first three given options didn’t work and the service still keeps on failing even though the service is running, you can try putting your computer in a Clean Boot State and then try to run System Restore again.

Log onto your PC as an administrator.
Type in MSConfig in the Start Search to open the System Configuration utility.
From there, go to the General tab and click “Selective startup”.
Clear the “Load Startup items” check box and make sure that the “Load System Services” and “Use Original boot configuration” options are checked.
Next, click the Services tab and select the “Hide All Microsoft Services” check box.
Click Disable all.
Click on Apply/OK and restart your PC. (This will put your PC into a Clean Boot State. And configure Windows to use the usual startup, just simply undo the changes.)
Now try to run System Restore again and see if the process goes smoothly.

Option 5 – Run the Windows Update Troubleshooter

You might also want to run the Windows Update Troubleshooter as it could also help in fixing the problem with System Restore. To run it, go to Settings and then select Troubleshoot from the options. From there, click on Windows Update and then click the “Run the troubleshooter” button. After that, follow the next on-screen instructions and you should be good to go. On the other hand, if you can’t boot into your Windows 10 computer, here are some fixes you can try instead:

Option 6 – Try running System Restore in Advanced Startup Options

If you cannot boot into your Windows 10 computer, you can try to run System Restore again in the Advanced Startup Options.

Boot your computer into the Advanced Startup Options screen.
From there, you will see some options to troubleshoot when you can’t log in to Windows in the usual way.
Now select Troubleshoot > Advanced Options > Command Prompt.
After that, type “rstrui” and hit Enter to execute the command which will start the System Restore process.

Option 7 – Run the SFC scan and DISM via Advanced Startup Options

Like what you did in the first given option, you can use the Advanced Startup Options to run both System File Checker and DISM. All you have to do is boot into the Advanced Startup Options and from there select Troubleshoot > Advanced Options > Command Prompt. After accessing Command Prompt, you can run the System File Checker scan first by entering the “sfc /scannow”. As for DISM, you can run the “Dism /Online /Cleanup-Image /RestoreHealth” command.

Option 8 – Try to run the Automatic Repair Utility

You might also want to use Automatic Repair in fixing the error. To do so, follow the steps below.

You can start by creating and booting from a bootable Windows 10 USB Stick.
After that, click on Repair your computer located in the bottom left corner when you are on the initial Windows Startup screen.
Next, click on Troubleshoot, and then on the other screen, click the Startup Repair option.
Now select the operating system you want to repair. Once you do that, it will start to repair your operating system. Wait until the process is completed and then check if the problem’s now fixed.

Fix Update Standalone Installer 0x80096002

If you are using a Windows Update Standalone Installer to install Windows Updates in your Windows 10 computer but you suddenly encounter an error saying, “Installer encountered an error: 0x80096002, The certificate for the signer of the message is invalid or not found”, read on as this post will guide you on how you can fix it. This kind of error could be due to the vendor’s certificate that might have become invalid, compromised, or pulled. Aside from that, it is also possible that the update is not targeted at your OS version. You could get this error when you try to install an incompatible update or software on your computer. This error can also appear due to misconfigured system files or when you try to install BitLocker To Go Drive Encryption or BitLocker Drive Preparation Tool. To fix this error, you can try to run the standalone installer in Compatibility mode or enable the Windows Identity Foundation or run the Windows Update troubleshooter. Make sure to check if the error was resolved after every suggestion. It will help you learn what fixed the problem.

Option 1 – Try to run the installer in Compatibility mode

Look for the setup file.
Once you find it, right-click on it and select Properties from the context menu.
After that, go to the Compatibility tab and mark the checkbox for “Run this program in compatibility mode for:” and from the drop-down list, select the Windows OS version you want the installer to run on.
You also have to check the “Run as administrator” option.
Now click the Apply button and then click OK to save the changes made and check if it has resolved the issue or not.

Option 2 – Try to troubleshoot compatibility

This option is almost the same as the first one except it is an alternative way of fixing the error 0x80096002 in case the first one didn’t work. In this option, you will troubleshoot the compatibility issue.

Look for the setup file.
Then right-click on it and select the “Troubleshoot compatibility” from the context menu.
After that, click on the “Try recommended setting” option. Once the process is done, the error message should be gone.

Option 3 – Try to enable the Windows Identity Foundation

You might also want to enable the Windows Identity Foundation as some users reported that it helped in resolving the error for them. To do so, follow these steps:

In the Windows Start Search, type “Turn Windows features on or off” and click on the matching result.
This will open a list of Windows Features and from there, look for the Windows Identity Foundation.
Once you found it, click on its checkbox and click OK to enable it and save the changes made.
Now see if it has fixed the error or not. If not, you have to disable the feature.

Option 4 – Run the Windows Update Troubleshooter

Running the built-in Windows Update troubleshooter is one of the things you can first check out as it is known to automatically resolve any Windows Update errors like error 0x80096002. To run it, go to Settings and then select Troubleshoot from the options. From there, click on Windows Update and then click the “Run the troubleshooter” button. After that, follow the next on-screen instructions and you should be good to go.

A Quick Guide to Fixing Error 451

Error 451 - What is it?

This is a typical SMTP error code. SMTP is the abbreviation for Simple Mail Transfer Protocol. It is an internet standard for email transmission. In other words, SMTP is a text-based protocol in which the sender communicates with the mail receiver by issuing commands and receiving a response code. The SMTP error 451 is displayed in the following format:

‘451 Requested action aborted: local error in processing’

This error message indicates that the program cannot send more messages and the server has hit the limit. This is because some mail servers have limits. The sever stops the task of sending and receiving emails when this limit is achieved.

Solution

Error Causes

The causes of error 451 include:

Server limit reached
Email rejection due to a remote anti-spam filter
Request denied by the server
Viral infection

If you heavily rely on email communication with your business partners and colleagues, then it is advisable to immediately resolve this issue without any delays. Though this error is not fatal, you should repair it right away to avoid inconvenience. SMTP error code 451 can hamper your ability to communicate via email.

Further Information and Manual Repair

Here are some of the best, easy, and effective DIY methods that you can try to repair error code 451 on your PC.

Method 1

To fix this error, simply follow these steps:

login to Linux SSH
Open the file /etc/localdomains
Nano/etc/localdomains and then add the domain name that is triggering email sending error
Now reboot your PC

This will hopefully resolve the issue. Nonetheless, if the error code still persists, then try other methods given below.

Method 2 - Configure List Settings to change the server limit.

This can be done by accessing the List Settings then Outgoing Mail Server (SMTP) and then the Limit Feature. By accessing the limit feature, you can easily adjust the program to any limit of your choice. Configure the limit and save changes. Reboot PC to activate the changes made.

Method 3 - Scan and Remove Viruses.

This error code can also be triggered due to viral infection. If this is the cause, then simply download an anti-virus on your PC. Scan the entire system and remove all detected malicious programs like Trojans, malware, adware, viruses, and spyware. This will repair the error 451 on your system.

Method 4

If the error still persists, then contact your SMTP provider to check the situation and resolve it. There is a possibility the error is generated from the SMTP provider’s end.

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