A Quick Guide to Fixing the Stop C00002lA Fatal System Error

Can not open and run EXE file in Windows is not a new issue and sadly it can still happen from time to time, luckily this step by step solution will help you to resolve this problem fast and effective in no time. Try the below solutions in no particular order and I hope that you will solve the issue fast and be able to return to using the computer like it never happened

1. Run SFC scan

   As the EXE file not opening issue lies in the Windows OS, the SFC tool will be able to identify the cause and fix this issue. Press ⊞ WINDOWS + X and choose command prompt (admin) in command prompt type: sfc /scannow Press ENTER

2. Check registry and modify if needed

   Sometimes value in the registry key is wrong and can cause this error, in order to check if this is the case, we will open the registry editor and find out Press ⊞ WINDOWS + R to bring run dialog up type in it: RegEdit and press ENTER In the left pane of the Registry Editor window, click on the HKEY_CLASSES_ROOT to expand the section Scroll down to find out the .exe registry and click on it Go to the right pane of the window and double-click on the Default and set the Value Data as exefile Click on the OK button Next, located the given in the window: HKEY_CLASSES_ROOT>exefile>shell>open>command Click on the “Command” in the left pane of the window In the right pane of the window double-click on the Default and set Value Data as “%1” %* Click on the OK button Restart your computer and check if the issue persists

3. Turn off Firewall and defender

   If you have a firewall and antivirus active there might be a chance of a conflict and that firewall or antivirus is preventing the EXE file from starting, disable your firewall and anti-virus and try again to open the EXE file.

4. Turn off user account control

   User account control can also like a firewall prevent some files from executing, go into accounts and turn off user account control to see if this might be an issue preventing you from opening the file.

Installer Error 1603 - What is it?

Installer Error 1603 message occurs during the installation of the Microsoft Windows installer Package. The error message is often displayed as the following:

'Error 1603: A fatal error occurred during installation.'

It indicates a problem occurred during the installation process and unsuccessful installation.

Solution

Error Causes

The installer error 1603 may occur if:

• The folder you are trying to install the Windows Installer package to is encrypted
• The system account does not have full control permissions
• Incorrect installation
• Registry issues

Further Information and Manual Repair

To resolve this error on your system, try the solutions listed below:

Solution 1: Install-Package in an Un-Encrypted Folder

Try installing the package to a folder that is not encrypted. However, if the error still persists, try other solutions listed below.

Solution 2: Enable Full System Control Permissions

Sometimes the error may occur when you don’t have system full control permissions. To enjoy full control permissions here’s what you need to do, go to my computer and right-click the drive that you wish to install the Windows Installer Package to. After that click properties and the security tab. If you can’t locate the security tab, this means your Simple File Sharing feature is turned on. You need to turn it off to continue. For that go to my computer, tools, and then click folder options. Now here press the view tab and check the Simple File Sharing box to turn it off. Press OK to save changes. Now you will be able to locate the security tab. Click on the Security tab and verify the name box that contains the system user account. If the system user account is empty then insert the account name. To insert, click Add, and then select user's dialog box, add a name, and close. Now go to the permissions section and check the box ‘Allow’ under full control. After that go to the ‘Advanced’ tab and do the following: If you are an XP user, select ‘Replace permission entries on all child objects with entries shown here that apply to child objects’ and then press OK to confirm. If you are not an XP user, then follow the same instructions but select the check box that says ‘Reset permissions on all child objects and enable propagation of inheritable permissions’ for the system account. Now click OK to confirm. To activate changes you will have to wait for a while. Once the changes are activated, try installing the Windows Installer package again.

Solution 3: Clean and Repair Registry

The Installer error 1630 can occur due to registry problems as well. To resolve registry-related issues download Restoro. This is a cutting-edge and advanced registry cleaner that scans your entire PC for registry-related errors in seconds and resolves them spontaneously. It removes all the unnecessary junk files, bad keys, invalid registry entries, cookies, and internet history cluttering and corrupting the registry. It repairs the damaged system files and repairs the registry right away thereby resolving Installer Error 1630 on your PC. It is safe and efficient. It is embedded with an intuitive algorithm and a sophisticated user-friendly interface. It is easy to use and operate. You can download it on any Windows version. Besides functioning as a registry cleaner, it also functions as an antivirus and a system optimizer. Click here to download Restoro on your PC to resolve all registry issues generating the installer error 1603 on your system.

Error 1512 - What is it?

Error 1512 is a type of runtime error code. This error may hamper your ability to run and load your desired programs on Windows PC. There are increased chances of runtime error 1512 occurring when system files go missing or get corrupt. Symptoms of this error code include:

• Slow PC speed
• Window System freeze

Solution

Error Causes

There are several for the occurrence of runtime error 1512. These include:

• Faulty or outdated drivers
• Poor Program installation
• Damaged Windows Registry
• Viruses tampering the system settings/memory
• Broken or incorrect Registry entries
• Damaged Windows registry

Further Information and Manual Repair

To resolve this issue you don’t have to hire a professional and spend hundreds of dollars to get it fixed. Here are some of the best and easy do-it-yourself methods to repair error 1512 on your system in a few minutes. These methods are very easy to work around and do not require any kind of technical expertise.

Method 1 - Uninstall and then reinstall the Same Program

Sometimes this runtime error may pop up due to poor program installation. In such an event, it is advisable to uninstall the program and then reinstall it again properly. To do so, go to the start menu, and click on control panel. Now select the program & features option. Here you will find the option Add/Remove Program. Remove the program causing error 1512. Once the program is removed, reinstall it again.

Method 2 - Run an Antivirus Program

Computer viruses are capable of tampering with system settings. Due to this reason you might experience runtime errors like 1512 on your PC. These malicious programs usually enter the system through phishing emails or website downloads. To resolve the issue, you need to run a powerful antivirus program. An antivirus removes all sorts of malicious programs hiding in your PC like malware, spyware, and malware that are responsible for generating runtime errors.

Method 3 - Update the Outdated Drivers on your PC

If the error still persists, then it is suggested to update outdated drivers. Faulty and outdated drivers can also trigger runtime error 1512. To do this, go to the Device Manager. Here use the Driver update wizard to make updates.

Method 4 - Remove the Invalid Registry Entries and Repair the Damaged Registry

The best way to perform both tasks is to download Restoro. It is embedded with a registry cleaner that is quite easy to use. The registry cleaner removes all invalid entries in seconds, cleans the cluttered registry by wiping out all the redundant and unnecessary files. The damaged registry is then repaired and resumes its normal function. Click here to download Restoro and resolve runtime error 1512.

HomeworkSimplified is a Browser Hijacking extension for Google Chrome developed by Mindspark. This extension will set your home page and new tab to MyWay.com.

From the Terms of Use: As part of the download process for the Toolbar, you may be given the option to reset your Internet browser’s homepage to an Ask homepage product and/or reset your new tab page to an Ask new tab product. If you do not wish to reset your homepage and/or new tab page to the Ask homepage and/or Ask new tab product(s), you can decline/opt-out of these features by checking or unchecking the appropriate box(es) during the download process for the Toolbar. While installing this extension monitors user browsing activity and sends it back to Mindspark servers, where they are later used/sold to better target and inject unwanted ads and sponsored content into your browsing sessions.

About Browser Hijackers

Browser hijacking is regarded as the web’s constant danger that targets web browsers. It is a kind of malware program that redirects the web browser requests to some other suspicious websites. Browser hijacker malware is developed for numerous reasons. Typically, browser hijacking is used for earning advertising revenue that comes from forced ad clicks and website visits. It may appear harmless, but the majority of such websites are not legitimate and will pose a major threat to your online safety. Additionally, hijackers will make the whole infected system vulnerable – other harmful malware and viruses will take hold of these opportunities to get into your computer effortlessly.

Indications of browser hijack

The typical signs that signify having this malicious software on your computer are: 1. your homepage is reset to some mysterious website 2. you observe new unwanted bookmarks or favorites added, usually directed to advertisement-filled or pornography sites 3. the default search engine is changed and the web browser security settings have been brought down without your knowledge 4. you’re getting new toolbars you have never seen before 5. you may notice numerous pop-up adverts on your computer screen 6. your browser has instability problems or exhibits frequent errors 7. you’ve prohibited entry to certain web pages, including the website of an anti-malware software developer like SafeBytes.

How they get into your computer or laptop

There are several ways your computer can become infected by a browser hijacker. They usually arrive through spam e-mail, via file-sharing networks, or by a drive-by download. They are generally included with toolbars, add-ons, BHO, plug-ins, or browser extensions. Browser hijackers sneak into your pc along with free software application downloads also that you unwittingly install alongside the original. Typical examples of browser hijackers include CoolWebSearch, Conduit, OneWebSearch, Coupon Server, RocketTab, Snap.do, Delta Search, and Searchult.com. Browser hijacking may lead to serious privacy issues and also identity theft, disrupt your browsing experience by taking control of outbound traffic, considerably slows down your computer or laptop by depleting a lot of system resources and result in system instability as well.

How you can get rid of a browser hijacker

Some kinds of browser hijackers can be removed from the computer by uninstalling malicious software programs or any other recently added shareware. But, certain hijackers are very hard to identify or remove since they might get themselves connected with certain crucial system files which allow it to operate as a necessary operating system process. You should think about undertaking manual repairs only if you happen to be a tech-savvy individual, as potential risks are associated with tinkering with the system registry and HOSTS file. You might opt for automatic browser hijacker removal by just installing and running an efficient anti-malware application. To eradicate any browser hijacker from your computer, you should download this certified malware removal application – SafeBytes Anti-Malware. Employ a system optimizer (like Total System Care) together with your anti-malware software to correct various computer registry issues, eliminate system vulnerabilities, and boost your computer overall performance

How To Get Eliminate Virus That Is Preventing Anti-Malware Downloads?

All malware is inherently harmful, but certain kinds of malware do a lot more damage to your computer than others. Some malware variants modify web browser settings by adding a proxy server or change the PC’s DNS configurations. In these instances, you will be unable to visit some or all of the websites, and thus not able to download or install the necessary security software to remove the malware. If you’re reading this article, you may have got affected by malware that prevents you from downloading a security application like Safebytes Antimalware on your PC. Do as instructed below to eliminate malware in alternate ways.

Get rid of viruses in Safe Mode

The Windows-based PC includes a special mode known as “Safe Mode” where only the bare minimum required applications and services are loaded. In the event the malware is blocking access to the internet and affecting your PC, launching it in Safe Mode enables you to download anti-virus and run a diagnostic scan whilst limiting possible damage. In order to get into Safe Mode or Safe Mode with Networking, press the F8 key while the system is booting up or run MSCONFIG and locate the “Safe Boot” options under the “Boot” tab. Once you are in Safe Mode, you can attempt to install your antivirus application without the hindrance of the malware. At this point, you can run the antivirus scan to remove viruses and malware without any hindrance from another application.

Switch over to an alternative browser

Certain viruses might target vulnerabilities of a particular web browser that obstruct the downloading process. If you are not able to download the security application using Internet Explorer, this means the virus may be targeting IE’s vulnerabilities. Here, you must switch over to another browser such as Chrome or Firefox to download the Safebytes Anti-malware program.

Install anti-malware on a USB drive

Another option is to store and run an anti-malware software program entirely from a Pen drive. Adopt these measures to use a USB drive to fix your infected computer system. 1) Make use of another virus-free computer to download Safebytes Anti-Malware. 2) Mount the pen drive on the same computer. 3) Double click on the exe file to run the installation wizard. 4) Select the flash drive as the destination for saving the file. Follow the activation instructions. 5) Now, transfer the pen drive to the infected computer. 6) Double-click the EXE file to open the Safebytes tool right from the thumb drive. 7) Click on the “Scan” button to run a full system scan and remove malware automatically.

SafeBytes Anti-Malware - More Protection For You Personally

If you’re looking to install anti-malware software for your PC, there are plenty of tools on the market to consider but you cannot trust blindly anyone, regardless of whether it is free or paid software. A few of them are good, some are ok types, while some will harm your computer themselves! You need to be careful not to select the wrong product, particularly if you purchase a premium application. While considering the dependable programs, Safebytes AntiMalware is certainly the strongly recommended one. SafeBytes anti-malware is a highly effective and user-friendly protection tool that is made for end-users of all levels of computer literacy. With its outstanding protection system, this software will easily detect and remove most of the security threats, including adware, viruses, browser hijackers, ransomware, PUPs, and trojans.

SafeBytes possesses a plethora of wonderful features that can help you protect your PC from malware attack and damage. Listed below are some of the best ones:

Real-time Active Protection: SafeBytes provides an entirely hands-free live protection and is set to check, prevent and remove all computer threats at its first encounter. It’ll regularly monitor your computer for hacker activity and also provides users with superior firewall protection. Anti-Malware Protection: This deep-cleaning antimalware application goes much deeper than most anti-virus tools to clean out your PC. Its critically acclaimed virus engine detects and disables hard-to-remove malware that conceals deep inside your PC. Website Filtering: SafeBytes gives an instant safety rating to the web pages you are going to visit, automatically blocking harmful sites and ensuring that you’re certain of your safety while browsing the world wide web. Light-weight: SafeBytes is a lightweight and easy-to-use antivirus and antimalware solution. Since it utilizes low computer resources, this application leaves the computer’s power exactly where it belongs to: with you actually. Premium Support: You will get 24/7 technical support to quickly resolve any issue with your security application. On the whole, SafeBytes Anti-Malware is a solid program since it has lots of features and can identify and eliminate any potential threats. You can be sure that your PC will be protected in real-time once you put this tool to use. For the best protection and the best value for your money, you can’t get better than SafeBytes Anti-Malware.

Technical Details and Manual Removal (Advanced Users)

If you’d like to manually get rid of Homework Simplified without using an automated tool, it might be possible to do so by removing the application from the Microsoft Windows Add/Remove Programs menu, or in cases of web browser extensions, going to the browser’s AddOn/Extension manager and removing it. You’ll likely also want to reset your web browser. To ensure the complete removal, find the following Windows registry entries on your computer and eliminate them or reset the values accordingly. Please note that this is for experienced users only and could be difficult, with wrong file removal causing additional PC errors. Furthermore, some malware keeps replicating which makes it tough to eliminate. Carrying out this malware-removal process in Safe Mode is suggested.

Error 1321 - What is it?

Error 1321 is a Windows PC error. This occurs when you try to install a Microsoft Office suite or program on your PC. The set-up program stops responding and the error message is displayed on the computer screen in the following format:

‘Error 1321. Setup cannot modify the file file_name. Verify that the file exists in your system and that you have sufficient permissions to update it.’

When this error occurs you cannot roll back the installation of the Office Suite or use the Add/Remove program option to remove the installed program.

Solution

Error Causes

Common causes of the occurrence of error 1321 are:

• Encrypt contents to secure data settings are enabled on the folder in which you are trying to install the Office suite/ program.
• PC infected by viruses
• Bad Registry Entries

Further Information and Manual Repair

The good news is that this error code is not fatal and besides it is also easy to resolve. Here are some easy do it yourself methods for you to repair this error on your system in a few minutes:

Method 1: Disable Encrypt Contents to Secure Data

To resolve this error code, make sure the encrypted contents to secure data settings are not enabled. To do so, simply right-click the folder in which you want to install the MS Office Suite or program. Now click properties and then the General tab. Now go to the Advanced option. In the Advanced Attributes dialog box, make sure that the Encrypt contents to secure data check box under Compress or Encrypt Attributes is disabled. If it is not then un-check to disable.

Method 2: Remove Viruses

Viral infection can also trigger error 1321. If this is the reason, then simply install and run a powerful antivirus on your system. An antivirus detects all types of malicious viruses such as malware, adware, spyware, and Trojans. Remove them to resolve the issue.

Method 3: Download Restoro.

If the issue is related to bad registry entries, then it is advisable to download Restoro on your PC. This is a user-friendly and powerful PC Fixer deployed with a registry cleaner. The registry cleaner scans your entire PC and wipes away all the bad entries cluttering and damaging the registry in seconds. Click here to download Restoro and resolve error code 1321 today.

USB Kill, a USB device is able to fry and damage your computer, mobile phone, router, etc. This device is quite dangerous and can kill electronics the moment it is inserted into an available port. By now people should know that they should not put unknown USB sticks into their devices because of potential virus and malware threats but this raises using unknown sticks to a whole new level.

Kill kits are not really new to the market, they have existed before but lately, technology really progressed and the latest USB sticks are really good, their success rate is around 95% which is pretty high and should not be taken lightly.

The second thing that you really should not play with strange USB sticks is that they dropped in price really hard, although top Kill kits will still go as high as around 300 USD, there are really cheap ones lurking in Ali Express that are just 6 USD!!! that makes them affordable devices for the mass market.

The device is made to take energy and current from the port it is plugged in, multiply it and release its charge back into the device, successfully frying some components immediately. Some more professional Kill sticks can even fry devices even when the device itself is not powered and can be even started remotely.

The point of this article is to make you aware that you should not in any kind of circumstances use and plug-in USB sticks into your devices that you do not know where they come from, especially from the mail!!

A very serious data breach has happened to the unfortunate GoDaddy hosting service placing a little over 1.2 million accounts affected. Security breaches sadly are not a rare occurrence but this time it is a little different. Each time when the company is breached data is stolen and that places the company in a bad light usually because its user database has been compromised and people are concerned about their data being misused. This is very rational fear and concern but this time things are a little bit different than usual, why is that, you might ask? Well, as before mentioned GoDaddy is a hosting company and the vector of attack was aimed at the part where it is hosting WordPress. Attackers were able to get their hands on the sFTP credentials of customers on that server meaning that all of the websites are also been relieved of their user base as well. This potentially means that there is a high chance that all of the hosted web site's content is also compromised, meaning that your data could also be compromised even if you were not a GoDaddy customer, all you needed to do is to be a member of any site hosted on their platform. GoDaddy has reset WordPress passwords and private keys, so it’s already taken the steps required to stock the attacker from exploiting anything with the passwords obtained. The company is in the process of generating new SSL certificates for customers. Bad thing is that the attack used a compromised password to get into systems all the way back around September 6^th, 2021, the breach was discovered on November 17^th, 2021, which is more than a 2-month active time where the attacker could harvest tons of data. The outcome of this attack will be seen in the upcoming time, until then be safe, and Just in case change your passwords.

Microsoft starting as of today will block its Office 365 users if they are using Internet Explorer or early versions of Edge browsers. So if you are using older non Chromium Edge versions of Microsoft browsers you can no longer access Office services until you switch. Now normally I would fully support this kind of decision since Internet explorer is a slow and vulnerable browser and the edge is similar in that regard. The new edge browser is great and it should be used but the issue I have is that Office 365 is not free, it is a premium feature and I am wondering how Microsoft plans to deal with people that have already paid for service but suddenly cannot access it anymore.

As we near the end of 2022 we look at the current best antivirus software for popular platforms, why they are the best, and why you should get them.

Avira, a great free Antivirus

Avira has been around a long time with its free antivirus version of the larger protection suite. It had its ups and downs but the latest versions are really great. With high-speed scans and low system impact, Avira antivirus is really one of the best free antivirus software currently on the market.

The software itself has also received UI & UX updates making it straightforward and easy to use. The virus scanning engine is the same as in paid version that ranks among the top engines in the world for this type of work. The package also gives you some great browser protection and a good firewall as well, there is really no excuse to skip on this if you want a free solution.

The only thing that we would say is not so great in Avira is reporting some false positives, sometimes even for MS updates, it is rare but it can happen.

Malwarebytes, a powerful Windows antivirus

Malwarebytes Premium is easy to use, simple antivirus solution that shies away from complicated UI, and simply put, it just works. Its scanning engine is well-known and places among the top and best in the world often finding some malware that other can miss.

Another great thing is its integration with Windows itself, it is one of the rare applications that can and will work incredibly well beside your typical Windows protection tools so you can have both of them running at the same time.

Installation and running are really simple and every typical PC user will find it as easy as walking in the park. On the other hand, sadly system impact is a little high and it will have issues running on lower-end systems due to its memory requirements.

Intego MAC Internet Security X9, the best Mac antivirus

Gone are the days when MAC had no virus issues, since MAC rose in popularity among the users, also rose the number of viruses and malware. The system itself has some great protection built it inside but for more security and better control of it, you will need a third-party dedicated solution.

Intego was made by Mac antivirus experts who have been building this kind of software last 25 years. The interface is easy to use and premade presets are really helpful, but the security suite can also be customized to fit your needs and desires.

Since this is only available as a security suite, you are getting a firewall and some other security tools along with your antivirus that will run as a part of it.

The bad side is that scans can sometimes run slow, most of the time they are OK in terms of speed but occasionally they can switch to slower speeds and impact scanning time to some annoying times. Also, there is no webcam protection nor VPN service included where others on this list have them.

Bitdefender mobile security: best Android protection

While protection is not only needed for your gaming or workstation, software suites that are dealing with mobile and tablet security exist. The best of them is the Bitdefender antivirus mobile suite. Low on system resources and low on performance impact with the really great virus detection rate Bitdefender is at the top of suites for your phone.

Consistent high virus detection packed with low battery impact is great but the suite comes with tons of other tools as well like browser security tools, email protection, and real-time link and notification protection.

The application will always scan each file and newly installed application in the background and alert and cut off any found threat. App itself is easy to install and use and most of the time it will do everything in the background for you but offer you customization if you need it.

The package also includes VPN and application lock that will let you protect the critical applications from being accessed as well as an online account scanner. Anti-theft and anti-loss tools, which allow you to find, remotely lock or wipe a stolen or lost device, add yet another layer of protection.

One thing that is missing from this great package is fraudulent call protection. Newer Android phones have this feature inside but it would be nice if Bitdefender had it as well.

Bitdefender, the best antivirus software

Now that we have covered specific cases of each platform, there is one player that has all of them covered and with a quality product, that player is BitDefender and it is great. Personally, this is my protection suite of choice and as I type this it is running in the background.

Bitdefender has it all, low system impact, as a matter of fact, it is one, if not, the lowest performance impact engine on the market currently and that is packed with a great and highly consistent virus & malware detection suite. Along with real-time malware protection, browser security, and anti-spam tools, you also get anti-phishing defenses, ransomware protection, and a strong firewall.

Bitdefender scores are very high in both the zero-day threat and real-world protection tests at AV-Test, an established organization that tests antivirus software. Despite being tested against tens of thousands of well-known and widespread malware threats, the software consistently achieves a 100% blocking rate.

The suite also comes with a restricted free VPN and with parental controls as well. Webcam and microphone protection are also included in the suite and on top of all, it has great pricing plans and constant discounts.

BitDefender is really a great package and it might sound too good, but after years and years of personally using it I have not had single malware or virus issue, the only thing that I would put as a negative is that system is severely slowed down when system scans are performed so be sure to run or schedule them when you are not using your computer. This, of course, can put some people off and I will admit it is a serious drawback but for me, the security of my workstation is more important than leaving the computer for 20 or so minutes in order to perform a full scan of the system.

There is a central location in Windows 10 that allows users to view all the notifications from its Action Center. Aside from viewing notifications, users can also manage them and take necessary actions in just one single place. Notifications in Windows 10 look similar to a message icon but can be at variance in function. However, recently, a number of users reported that even though they receive notifications about new actions but when opening them, they see nothing. In other words, the notification is false, and to fix this, read on as this post will provide you a couple of workarounds. The Windows 10 Notifications and Action Center notification messages might show a mismatch. For instance, Windows 10 may say that you have some notifications but when you open Action Center, you find it empty and there are actually no notifications there. Take the case of the following screenshot, the Windows 10 Notification says that there are 6 new notifications available for viewing but the Action Center says otherwise. Before you troubleshoot the problem, you might want to run System Restore especially if you’ve made some changes in your computer prior to this issue which might have messed with the Windows 10 Notifications and Action Center. To perform System Restore, refer to these steps:

• First, press the Win + R keys to open the Run dialog box.
• After that, type in “sysdm.cpl” in the field and tap Enter.
• Next, go to the System Protection tab then click the System Restore button. This will open a new window where you have to select your preferred System Restore point.
• After that, follow the on-screen instructions to finish the process and then restart your computer and check if the problem is fixed or not.

If the problem wasn’t fixed and you’re still getting false notifications, you might want to troubleshoot the problem further using the options given below.

Option 1 – via Windows PowerShell

• In the Start search, type “PowerShell” in the field and hit Enter to pull up the Windows PowerShell window.
• Next, copy and paste this command and hit Enter to execute it: Get-AppxPackage | % { Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)AppxManifest.xml” -verbose }
• After that, reboot your computer and check if the false notifications are now gone.

Option 2 – Try renaming the Usrclass.dat file

DAT errors like the ones that are associated with the Usrclass.dat file, most likely occur during computer startup, program startup, or while you try to use a specific function in your program. Even so, it can easily be fixed. How? Refer to the given steps below.

• Tap the Win + R keys to open the Run dialog box.
• Then type %localappdata%MicrosoftWindows and hit Enter to get to the location of the UsrClass.dat file.
• After that, look for a file named UsrClass.dat and once you’ve found it, right-click on it and select the Rename option.
• Now rename the file to UsrClass.old.dat and then restart your computer and see if the problem is now fixed or not.