New Windows vulnerability discovered

The latest security vulnerability was discovered inside both Windows 10 and Windows 11 letting any user access admin privileges inside the operating system. This can, of course, be used by a potential attacker to get full control of the system.

The problem lies in Microsoft's security rules assigned to the Windows Registry and the Security Account Manager. Both for some reason have reduced restrictions allowing any local user to fully access the files without administrator privileges.

The problem is even more amplified if we think about Security Account Manager which includes all account data including the passwords of all users using the same PC. This can provide a potential attacker with all information and let them log on into the administrator account for full control.

Microsoft is aware of the matter and is tracking it with code CVE-2021-36934, and includes a complete workaround for the issue, which includes restricting access to  %windir%\system32\config and deleting any restore points or Shadow volumes that were created before that point until the hole is plugged with an official security patch.

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Fix missing files in Recycle bin
Have you ever deleted a file by mistake? Do not feel bad, we all have, but what if you deleted the file by mistake and then you went to Recycle bin to restore it only to find out that the bin is empty? If you experienced this kind of issue then you know how unpleasant and frustrating it is but do not worry, we are here to help and provide you with solutions to this problem and hopefully get your file back. Follow the next steps from first to last since they are organized in a way to minimalize the permanent deletion of lost files.
  1. Refresh Recycle bin view

    If you spend any amount of time on this site reading through articles, you know I am a big fan of simple and effective solutions and there is nothing simpler than a single press of a button. Open your recycle bin and press F5 to refresh view or right-click anywhere inside and choose refresh. If your file does not appear with this method go to the next step.
  2. Set Windows to show hidden system files

    In order for this to work first, you will need to open File Explorer by pressing ⊞ WINDOWS + E Keyboard with windows and e markedWhen File Explorer opens go to VIEW > OPTIONS. Inside options select “Show hidden files, folders, and drives”, uncheck “Hide protected operating system files (Recommended)”, and click APPLY > OK Go to the recycle bin and check to see if files have managed to show up.
  3. Check if Don't move the file to the recycle bin is enabled

    Right-click on recycle bin and choose properties, under properties, there is the option that says Don’t move files to the Recycle Bin, Remove files immediately when deleted. This option is not selected by default, but it could be turned on by someone else or by mistake. If you see that this option is enabled sadly your file is gone and you will have to get the file back by using some third-party undelete application, uncheck this option to prevent future deletion of files by mistake.
  4. Increase recycle bin size

    This will not help you to get your file back sadly but it will help you in storing more files in recycle bin. This is helpful since if you reach your recycle bin limit all further files will be permanently deleted and not been able to get them back. So by increasing bin size you will have more space for deleted files to be saved. To do that, right-click on Recycle Bin, select Properties. Now, increase the Maximum size from the Custom size option, and click Apply and OK.
  5. Reset recycle bin

    To reset and fix corrupted recycle bin do the following: Press ⊞ WINDOWS + X to open the secret Windows menu and click on command prompt (admin) keyboard with windows and x markedIn the command prompt type in the following: rd /s /q C:\$Recycle.bin Reboot your system
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How to Fix QTCF.dll Error

What is QTCF.dll Error?

Sometimes you may experience QTCF.dll error on your computer either during installation or while upgrading applications like iTunes and QuickTime. This error indicates that the installation or the upgrading of the desired application was unsuccessful. The QTCF.dll error is recognized by the Apple Support Community and they have provided a solution to fix this error easily.

Solution

Restoro box imageError Causes

QTCF.dll error occurs because the computer overloads with too much data which corrupts and damages registry files. And therefore the desired program fails to download and start on your PC. When this happens you see a pop up on your screen and the QTCF.dll error message that is usually displayed as:
  • QTCF.dll not found
  • QTCF.dll file is missing
Such message display hinders your ability to use iTunes or QuickTime applications on your PC. Furthermore, it also slows the performance of your system and you may encounter startup and shutdown problems. Therefore, it is advisable to repair the problem and fix the QTCF.dll error right away.

Further Information and Manual Repair

The good news is that you don’t need to go to a professional or be an IT expert in order to fix the QTCF.dll error. Since this error means that the installation or the attempt to upgrade the system was unsuccessful therefore you need to reinstall the fresh copy of the application. Here’s how you can easily fix the problem by yourself and install a fresh copy of the application: Step 1: First close all the applications running on your computer. Step 2: Now uninstall the application that you were trying to install such as iTunes or QuickTime.  To do this, go to the start menu, click on settings, control panel, and programs. Now click on the application you want to remove. Step 3: Once the application is uninstalled and removed from your computer, then restart it again. Step 4: Now download a fresh version of the application (iTunes or QuickTime) from Apple’s official website http://www.apple.com/quicktime/download/. Step 5: Run the installer. If reinstalling doesn’t work, then it is advisable to download the QTCF.dll repair tool. This repair tool will scan your PC for errors in seconds. Once the scanning is complete, click on the ‘fix all’ button to repair your computer. Once the error is fixed, restart your computer and then try reinstalling the desired application one more time.

A Word of Advice

For regular PC users, it is advisable to install an anti-virus and malware scanner and run it every time you use your computer. This helps you keep informed about the viruses or errors that your computer might be exposed to. And you can take timely actions before you experience file corruption and damage.
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Display isn't compatible with Windows Error
Upgrading your computer from Windows 7 or Windows 8 to Windows 10 or even upgrading Windows 10 to a new version is not that simple. The setup initially checks for all the drivers and other software utilities installed on your computer and verifies and blockages or upgrade or upgrade blocks with respect to any of those drivers or any of those software utilities regardless if you use the Windows 10 ISO or the Windows 10 Upgrade Assistant. One of these common errors, when you upgrade or update your computer, is the “The Display is not compatible with Windows 10” error. This kind of Windows Upgrade error is related to the compatibility of the Graphics Driver installed in your computer. But worry not for this post will guide you in fixing this problem. The “The display is not compatible with Windows 10” error has the same workarounds as the following errors:
  • These devices aren’t fully compatible with Windows 10.
  • The display is not compatible with Windows 10. Check with the manufacturer for support.
  • The display manufacturer hasn’t made your display compatible with Windows 10. Check with the manufacturer for support.
To resolve this Windows Upgrade error, here are some suggestions that could help:

Option 1 – Check for incompatible drivers in your computer

  • Open the Device Manager from the WinX Menu.
  • Then expand the list for Display Adapters.
  • Next, right-click on the NVIDIA Graphics Card list and select Enable.
  • After that, right-click on it again and click on the “Update Driver Software…” option.
  • After doing so, a new window will appear and from there, click on the “Search automatically for updated driver software” option.
  • Then check if Windows is now able to detect your Graphics Card as well as the latest driver for it. If not, proceed to the next step.
  • Right-click on the driver again and click on the “Update Driver Software…” option.
  • Now click on the Browse my computer for driver software option and then click on Let me pick from a list of device drivers on my computer.
  • Afterward, select a compatible driver for your computer named NVIDIA Graphics Card and then proceed.
  • Wait for the whole process to be completed and restart your computer to successfully apply the changes made.

Option 2 – Get the latest version of Graphics drivers from the manufacturer’s website

In case you don’t know the manufacturer of the Graphics Processing Unit or GPU of your computer, you need to check first. They’re usually NVIDIA, Intel, or AMD. So if your computer’s Graphics Processing Unit is manufactured by NVIDIA, you need to get the latest version from their official website.

Option 3 – Try to install the latest Graphics driver in Compatibility Mode

If you’re not able to install the Graphics drivers you’ve downloaded, you can try installing them again but this time using Compatibility mode. Follow the steps below to do so:
  • You need to download the driver and place it on your desktop.
  • After that, right-click on it and select Properties.
  • Next, switch to the Compatibility tab where you should see two options:
    • Compatibility troubleshooter, and let Windows figure out what works best for you. If it fails, follow the next.
    • Manually choose the version of Windows it was correctly working.
  • You also have the option to change the DPI settings and see if that helps. Then click the Apply and OK buttons.
  • Now right-click on the file and select the “Run as administrator” option to install. After that, you should now be able to change your screen aspect ratio to what you were using early on.
Note: If you have other programs that won’t work on the existing version of Windows, then make sure to run the program in a Compatibility mode.

Option 4 – Try to run the Program Compatibility Troubleshooter

You might also want to run the Program Compatibility Troubleshooter. This built-in troubleshooter is available in the Windows Update & Security section. From there, select Troubleshoot. This will find a list of programs for you and since you have already downloaded the driver files, just click on Not Listed located at the top of the program list. After that, browse and select the driver files and then let the program do its job.
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How to Fix Error Code 0x80240001 on Your PC

Error Code 0x80240001- What is it?

Error Code 0x80240001 usually occurs in Windows 10 and is specific to the process of updating your system. It is similar to an error code found in previous versions of the software during the update process. There are a number of steps that can be taken to solve this error code, most of which are fairly easy for the average user to undertake.

Common symptoms for this particular error code include:

  • Inability to complete the updating process of your Windows 10 system
  • A notice that the Windows Update Agent is not able to provide appropriate services through the update module.

While it can be frustrating to have this message appear during the update process, users can resolve the error in a number of ways. However, if you are not confident in your ability to follow the steps below or if the methods listed fail to resolve the problem, contact a certified Windows 10 repair technician to assist you in the process.

Solution

Restoro box imageError Causes

Error Code 0x80240001 occurs when the Windows Update tool is unable to complete its service successfully. This error occurs most often when users attempt to update to Windows 10 from older versions of the software, including Windows 7, 8, or 8.1.

This particular error code can also occur when your system has not been updated in a regular fashion. Stacked updates make it more likely for Error Code 0x80240001 to occur.

In most cases, when Error Code 0x80240001 appears on your screen, the update process will be halted. Sometimes, the screen may display a single color background, removing the appearance of all other windows and applications.

Fortunately, there are several methods that you can use to attempt to circumvent the problem and see the update process through to completion.

Further Information and Manual Repair

While it can be frustrating to deal with an error when you attempt to update your Windows software, there are several ways that you can seek to resolve the issue that causes Error Code 0x80240001. These steps are relatively simple to complete and do not require advanced techniques to be used. However, if you are not confident in your ability to complete the steps listed below, enlist the aid of a qualified Windows technician to help you.

Here are the most common ways that Error Code 0x80240001 can be resolved for Windows 10:

Method One:  Download and Use the Windows Repair Tool

From the Windows website, you can download the Windows Repair tool, if it is not already installed on your computer. While there are other tools available through outside sites that claim that they can resolve this error, in many cases, they can be a carrier for viruses and other kinds of malware, so it is inadvisable to use non-Windows tools to fix this particular error code.

Once you have successfully added the Windows Repair tool to your computer, open it up and look for the option to run “Repair Windows Update.” Using this process, your system can search for and resolve the error, allowing you to successfully run the update tool through to completion.

Method Two:  Uninstall Recently Added Software

In some cases, software that has been recently added to a non-updated computer can cause the update process to experience issues. If you believe that this may have occurred in your case, simply uninstall the software in question, then attempt to run the Windows 10 Update process again.

The best way to prevent this error from reoccurring when you seek to update your Windows 10 system is to apply updates within a short period of time from their release date. It is recommended that users update regularly, which can allow them to avoid a number of issues that are common to the update process.

If you have any difficulty in resolving Error Code 0x80240001 after you have attempted these steps, you may need to enlist the help of a qualified technician who is familiar with the specific errors related to the Windows 10 Update process. This can especially be helpful if you have recently installed a number of new kinds of software and are unsure of whether or not any specific one may be causing your issues. If you wish to always have at your disposal a utility tool to fix these Windows 10 and other related issues when they do arise, download and install a powerful automated tool.

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Fix Windows Update Error 0x80244019
If you are trying to update your Windows 10 computer but encounter the Windows update error 0x80244019 instead, read on as this post will help provide you some possible fixes to resolve the problem. This kind of Windows Update error is usually caused by your Windows Update settings or the Windows Update components. Many users who encountered this error reported that the update fails with the said error which keeps them from enjoying the latest features that the Windows Update brings. In such cases, some of the common culprits for this Windows Update error are the Windows Update settings, Windows Update configuration, third-party antivirus programs, and so on. To resolve this error, you can check out the options provided below.

Option 1 – Restart your computer and try installing the Updates again

You can restart your computer and then try installing the updates once again. There are instances when a simple restart resolves Windows Update errors. Aside from that, it would also be better if you make sure that your internet connection is working and that it’s stable. And so after you restart your computer, check for updates once again and see if you’re still getting the error or not.

Option 2 – Try to change the Windows Update settings

You might also want to try tweaking the Windows Update settings. This will prevent other Microsoft products from being updated and besides, you can always turn the option back on afterward. To change Windows Update settings, follow these steps:
  • Tap the Win + I keys to open Settings.
  • Next, go to Updates and Security and click on the Advanced Options.
  • From there, turn off the “Get me updates for other Microsoft products when I update Windows” option.

Option 3 – 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 code 0x80244019. To run it, Refer to these steps:
  • Tap the Win + I keys to open Settings.
  • From there, click Update and Security and go to the Troubleshoot section.
  • Next, select Windows Update and click the “Run the troubleshooter” button and wait until it’s finished, and then try to run Windows Update again.

Option 4 – Try to disable the third-party antivirus program

Disabling the antivirus program or any security software installed in your computer is always a good idea you can try when the Windows Update process does not go smoothly. There are times when you encounter Windows Update errors like 0x80244019 due to interference of third party antivirus programs. So before you try updating your computer again, make sure to disable the antivirus or security program and once the Windows Update is done, don’t forget to enable the antivirus program back again.

Option 5 – Try to manually install the Windows Updates

Windows Update Error 0x80244019 might be due to a Windows Update that has failed. So if it is not a feature update and only a cumulative update, you can download the Windows Update and install it manually. But first, you need to find out which update has failed, and to do so, refer to the following steps:
  • Go to Settings and from there go to Update and Security > View Update History.
  • Next, check which particular update has failed. Note that Updates that have failed to install will be displayed under the Status column which has a label of “Failed”.
  • After that, go to the Microsoft Download Center and look for that update using its KB number and once you find it, download and then install it manually.
Note: You can also use the Microsoft Update Catalog, a service from Microsoft that provides a list of software updates that can be distributed over a corporate network. With the help of this service, it can be easier for you to find Microsoft software updates, drivers as well as fixes.

Option 6 – Restart some Windows Update services

The first thing you have to do is to restart Windows Update-related services. Refer to the steps below to do so.
  • Open the WinX Menu.
  • From there, open Command Prompt as admin.
  • Then type in the following command – don’t forget to hit Enter right after typing each one of them.
net stop wuauserv net stop bits
  • After entering these commands, it will stop the Windows Update Service and the Background Intelligent Transfer Service.
  • Next, go to the C:/Windows/SoftwareDistribution folder and get rid of all the folders and files thereby tapping the Ctrl + A keys to select them all and then click on Delete. Note that if the files are in use, you won’t be able to delete them.
  • Once all the contents in the Software Distribution folder are deleted, restart your PC and then go back to Command Prompt and input the following commands again.
net start wuauserv net start bits
 Since the folder has already been flushed, it will be populated afresh the instant your restart your computer and open Windows Update. Now try to update your computer again and see if the error is fixed or not.
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How to Fix Unknown Hard Error in Windows 10
The “Unknown Hard” error that keeps on appearing in Windows 10 can put users in an unpleasant situation. This kind of error leads to the freezing of the taskbar, blackening of the screen, and sudden disappearance of the icons on the Desktop. And each time you try to open Windows, the system will only give you an error message saying that it’s a critical error and some applications like Start and Cortana won’t work. Upon analysis, it seems that the “sihost.exe” is not responding and that it is the one that’s causing the c000021a Unknown Hard error to pop up. Sihost.exe files represent the Shell Infrastructure Host which is an essential component in the Windows operating system. The Windows Shell Infrastructure Host is primarily responsible for handling some graphical elements of the operating system interface such as the Start menu and the taskbar transparency. And so if the Shell Infrastructure or Sihost.exe has stopped, has been removed, or corrupted, you will most likely have issues with the overall functionality of the Windows operating system and you’ll get the Unknown Hard error In addition, the ctfmom.exe Unknown Hard error may also occur due to incompatible drivers installed on your PC. Ctfmom is a process that identifies inputs such as handwriting, languages, and many more. It’s the one that controls the functions of background behavior. To resolve this issue, you need to first try to identify which application is the one that’s running the sihost.exe file. And if needed, you need to either update or reinstall or completely uninstall the problematic application.

Option 1 – Try to run the System File Checker

The SFC Scan or System File Checker, us a built-in utility in Microsoft Windows that can be found in the C:\Windows\System32 folder. This tool allows users to scan and restore any corrupted system files in Windows that might be causing the Unknown Hard error to appear. Before you use this tool, make sure to find out whether the sihost.exe on your computer is a Trojan that you have to remove or if it’s a file that belongs to a trusted Windows application. Once you have that sorted out, follow the steps 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.

Option 2 – Try to use System Restore

You can also try using System Restore. This is one of the ways you can use it to back up your PC. Since restore points are created automatically each week by System Restore, you can use System Restore to restore your computer back to an earlier good point in time.

Option 3 – Try to troubleshoot the error in a Clean Boot State

Putting your PC in a Clean Boot state can help you diagnose and troubleshoot the issues in your system. During this state, you can start the system with a minimum number of drivers and startup programs that will surely help you in isolating the root cause of the Unknown Hard Error.
  • 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” checkbox 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” checkbox.
  • 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.)
After putting your PC in a Clean Boot State, try creating a system restore point and see if the problem still occurs. Clean Boot troubleshooting is designed to help you isolate the problem. For you to execute a clean boot troubleshooting, you must do a couple of actions (the steps are given above) and then restart your PC after every action. You might have to disable one third-party app after the other to really isolate the issue. And once you’ve narrowed down the problem, you can either disable the third-party app that’s causing the problem or remove it. Note that you must switch your PC back into the Normal Startup mode after you’re done troubleshooting the problem. Here’s how you can do it:
  • From the “Start” menu, go to System Configuration.
  • After that, switch to the General tab and click the option for “Normal Startup”.
  • Next, go to the Services tab and clear the checkbox for “Hide all Microsoft services”.
  • Then find and click “Enable all” and if prompted, you have to confirm.
  • Afterward, go to the Task Manager and enable all the Startup programs and confirm the action.
  • Restart your PC when prompted.
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Edge Content Process has stopped working
A lot of programs in Windows utilize the helper processes to ensure that they can get the job done as early as possible. And one of the programs that use these processes is Microsoft Edge. This built-in browser uses a process called the Edge Content process. The moment you start your computer, these system processes are loaded which makes the Edge browser load faster. To be specific, these are the three processes that are related to Microsoft Edge:
  • MicrosoftEdge.exe
  • MicrosoftEdgeCP.exe
  • MicrosoftEdgeSH.exe
The process that ends with the “CP.exe” is the content process in Edge. However, when this process stopped working, this can affect the Edge browser. In such cases, when you check the Reliability Monitor, you will see that the state of the “Microsoft Edge Content Process” is “Stopped working” which keeps on appearing. To resolve this issue, you can try to clear the browsing data of Microsoft Edge or repair or reset it. You can also try re-registering Edge via Windows PowerShell as well as check your security programs that might be causing interference with the process.

Option 1 – Clear the browsing data of Microsoft Edge

  • Open Microsoft Edge.
  • Then click on the three horizontal dots to open the menu.
  • From there, click on Settings. And under Settings, click the “Choose what to clear” button under the Clear browsing data section.
  • Next, check all the checkboxes and then click the Clear button to clear the browsing data in the Edge browser.
  • Restart Edge.

Option 2 – Try to reset, repair or reinstall Edge via Settings

You can reset, repair or reinstall the Edge browser through Settings. If none of it helped, you can try the following:
  • Open File Explorer and then go to this path – C:/Users/YourUsername/AppData/Local/Packages
Note: Before you type in the path in the Address bar, make sure that you put your user account name in place with the “YourUsername”.
  • Tap Enter to proceed.
  • Next, look for the folder named “MicrosoftEdge_8wekyb3d8bbwe” then right-click on it.
  • Click on Properties and uncheck the option “Read-only” under the General tab in the Properties window.
  • Click on Apply and then OK to save the changes made.
  • After that, look for the MicrosoftEdge_8wekyb3d8bbwe folder again and delete it. And if a prompt stating “Folder Access Denied” appears on your screen, just click on the Continue button to proceed – doing so will delete most of the content inside the folder except for the folder named “AC”.
  • Restart your computer

Option 3 – Re-register Edge via Windows PowerShell

  • In the Start Menu, search “Windows PowerShell”.
  • Right-click on Windows PowerShell from the search results and select the “Run as administrator” option.
  • Type in this command in the PowerShell windows and tap Enter – Cd C:/Users/YourUsername
  • After that, type in this command and tap Enter – Get-AppXPackage -AllUsers -Name Microsoft.MicrosoftEdge | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)AppXManifest.xml" -Verbose}
  • Restart your PC.
Get-AppXPackage -AllUsers -Name Microsoft.MicrosoftEdge | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register “$($_.InstallLocation)AppXManifest.xml” -Verbose}

Option 4 – Try to check your security program

It is possible that a security program installed in your computer is the one that’s causing the problem which is why you have to check it. According to security experts, there are some security programs that could be detecting the Edge’s content process as suspicious, blocking or terminating it as a result. Thus, you need to modify your security program’s settings to fix the problem.
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Fix CSGO Crashes in Windows 10
Counter strike has evolved from half-life mod into the full-featured game and has kept in popularity for years, even today game is wildly popular and has a huge player base. Sadly game can crash in Windows 10. Here in this article, we will address how to fix csgo crashing in Windows 10 so you can play it smoothly and crash-free as it was meant to be played.
  1. Update your display drivers

    Often in the gaming world having the latest display drivers can mean a world of difference. Counterstrike GO is no different, make sure that your drivers are updated to the latest version, if they are not, go to your manufacturer's website and download the latest version.
  2. Update Windows

    Just how much important is it to have the latest display drivers so it is to have the latest Windows update. Often problematic things are addressed in the update itself.
  3. Turn off compatibility mode

    Compatibility mode is most often the cause of crashes. Go to the game installation folder and search for csgo.exe. Once you locate it right-click on it and choose properties. Under properties, find the compatibility tab and turn off compatibility mode if it is ON. Uncheck run as administrator also
  4. Delete CSGO.EXE and add cl_disablehtmlmotd 1

    If disabling compatibility mode has not solved the issue do next: Pull up the installation directory folder, find csgo.exe, and delete it Pull up the Steam Library and locate Counter-Strike Global Offensive Right-click on it to select properties Find the local tab and click on verify integrity of game files When that is complete, go back into the Counter-Strike Global Offensive installation folder and search for cgo.exe Turn compatibility OFF like in the previous step Return to the Steam Library, right-click on Counter-Strike Global Offensive and click on properties again Go under the launch options settings In the new window, type in cl_disablehtmlmotd 1 Save the changes and restart the game
  5. Lower game settings

    If previous steps did not help and the game still crashes, try lowering game graphic settings. Crashes can happen if a game is heavy on the current system resources.
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A Quick Guide to Fixing the Stop C00002lA Fatal System Error

Stop C00002lA Fatal System Error- What is it?

C00002lA Fatal System Error is a blue screen of death error that may occur when you start your Windows NT 4.0 based computer. This error causes the screen to turn blue and the system also shuts down. The stop C000021A error message is displayed in the following format:

Stop c000021a {Fatal System Error} The session manager initialization system process terminated unexpectedly with a status of 0xc0000017 (0x00000000, 0x0000000) The system has been shut down.

Error Causes

The stop C000021A error occurs when either Crsrss.exe or Winlogon.exe fails. When the Windows NT kernel identifies that either of these processes has failed, it stops and the error code stop C000021A appears on the computer screen. Here are some of the underlying causes for the stop C0000021A error:
  • The incompatible third-party program
  • Hard disk issues
  • Service pack installation has failed
  • Mismatched system files have been installed
  • Bad and invalid registry keys

Further Information and Manual Repair

To resolve the stop C000021A Fatal System Error on your PC try the following solutions:
  • Remove Incompatible Third Party Programs

If the error occurred after you recently installed a new program, then it is advisable to remove that program. The error occurs due to the incompatibility of the program. To remove the program go to the start menu and click on the control panel. Now click on Add/Remove Program tab and double click on the program name that you recently installed and remove it from the list. Once removed, not reboot your PC. Reinstall a compatible program and run it. It is most likely to resolve the issue. However, if the stop C000021A error still occurs, then it means the problem is critical. It is related to the registry.
  • Repair and Restore the Registry

This procedure is slightly long and tricky. To try it, you need to be technically sound. Here’s what you have to do: first create a parallel installation of Windows NT. Start your PC to the parallel installation and then open the Registry Editor. On the Registry Editor’s Windows menu click HKEY_LOCAL_MACHINE on Local Machine and then click Load Hive. Now type the path %systemroot%system32configsystem into the System hive of the prior installation. Then click open. Here you will be prompted to enter the name of the key, type TEST. Note the setting for the current DWord value in the preceding registry key. This is 0x1 and is denoted by CURRENT:Reg_Dword: 0x1. This value indicated that the Current Control Set for your original Windows NT installation corresponds to ControlSet001 in this window. Now if the value is 2, it indicated that the Current Control Set corresponds to ControlSet002. Now locate the following registry key: HKEY_LOCAL_MACHINETESTControlSetXXXControlSession Manager. XXX is the Current Control Set Value. And delete any pending file rename operation entries. Then click TEST hive and then click Unload Hive. After that again repeat the process, open the registry menu and click load hive, here type the path %systemroot%system32configSoftware to the Software hive of the prior installation and then click open. Now you type TEST 2 when you are prompted for the name of the key. Remove any pending file rename operations entries in the following registry keys: HKEY_LOCAL_MACHINETEST2MicrosoftWindowsCurrentVersionRunOnce HKEY_LOCAL_MACHINETEST2MicrosoftWindowsCurrentVersionRunOnceEx Now click TEST2 hive and then click unload hive. Quit the Registry Editor and then restart your original installation. This will resolve the stop C000021A error.
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Choose what application will load on startup
Hello everyone and welcome to another great tutorial from errortools.com I hope everyone is feeling great and that you are prepared to boost the performance of your computer. This time we will speed up Windows startup time and overall performance by eliminating startup programs that we don't need and do not use. Microsoft itself and some application developers tend to have some applications or some services always active and set to be loaded on Windows startup. If you want to change which of these applications are starting up with your Windows and change them, follow this easy guide and you will be speeding up your Windows in no time. First thing is to open a task manager, fastest and most direct way of doing this is with a keyboard combination of CTRL + SHIFT + ESC keyboard with ctrl shift and esc markedWhen Task Manager opens, click on the startup tab on top. task manager startup tabOnce you click on startup you will get a list of applications that are set to be started when Windows is booted. startup applicationsYou can now click on the application and then click on disable on the bottom button, the application status will update in task manager to disabled and it will not be booted anymore when Windows starts. In this same manner, you can enable back some applications if you changed your mind about them. Please note that some applications are using some services and must have them running or they will not work properly. The best practice is to disable applications you are positive you will not use or use rarely so you do not want them to slow down Windows.
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