Fatal Error c000021a is a type of Windows stop error also known as the blue screen of death (BSoD) error. When this error occurs, it causes the computer screen to go blue and locks the user out of the current activity.
This error code is fatal and can lead to serious issues like system crashes and freeze.
The error code is usually displayed in the following format:
STOP: c000021a {Fatal System Error}
The Windows Logon Process system process terminated unexpectedly with a status of 0xc0000034 (0x00000000 0x0000000)
Error CausesFatal Error c000021a occurs when the Windows kernel detects that either Winlogon.exe or Csrss.exe service processes have stopped responding or failed to load. When this happens the error code pops up on the screen.
Nonetheless, this is not the only reason for the occurrence of this error. There are plenty more reasons why Fatal Error c000021a may pop on your computer screen. These include:
No matter what the reason may be, it is advisable to fix the error right away without any delays. Remember it is a fatal error and can cause a great deal of damage to your PC.
Fatal Error c000021a is a serious PC issue but this does not mean you have to hire an expert to get it fixed. The good news is that this error is actually quite easy to resolve.
You don’t have to be a technical whiz or a computer programmer to fix Fatal Error c000021a on your PC.
Here are some do it yourself methods to fix this error code right away without any hassle:
Let’s get started:
As we mentioned about corrupt or missing drivers can be one of the many reasons for the occurrence of this error. So, check the drivers first. Perform a driver scan and make sure all your drivers are updated.
To do this, first launch Task Manager by pressing CTRL+SHIFT+ESC on your keyboard. Now click on the application tab and then click ‘New Task’ then browse.
After that, go to C:\Windows\System32\Restore folder and then double click the rstrui.exe file. This will help start system restoration. Your computer will reboot during the process and hopefully, the error will be resolved.
Nonetheless, if the error still persists then try methods 3 and 4.
Sometimes Fatal Error c000021a may also occur due to malware infection. Your PC may be affected by viruses hidden in different locations without you knowing about it.
Therefore to resolve this error, it is recommended to run an antivirus and scan for viruses. If detected, remove them right away to fix the error code.
Another method to resolve Fatal Error c000021a code on your system is to repair the registry. The registry stores all the information and activities performed on the system.
If it is not cleaned frequently, it gets loaded with too many files unnecessary and obsolete files like the junk files, cookies, internet history and temporary files which corrupts and damages the registry thereby generating blue screen of death error codes like Fatal Error c000021a.
Though you can repair the registry manually it can be both time-consuming and slightly difficult especially if you are not a computer programmer. Therefore it is advisable to download a registry cleaner to fix it right away.
Whether the Fatal Error c000021a code occurs due to viral infection or registry issues, download Restoro. This is a next-generation, advanced, and multi-functional PC Fixer. This software is deployed with multiple utilities such as a powerful registry cleaner, an antivirus, a system optimizer, and more.
The registry cleaner scans the entire PC and detects all types of registry issues at once. It cleans the registry, wipes out all the unnecessary files, and restores the registry back to normal.
Simultaneously, the antivirus embedded in this software detects all types of viruses including malware, adware, spyware and Trojans and removes them in seconds.
The system optimizer feature ensures the speed and performance of your PC are not compromised during the repairing process. It ensures your PC works at its optimal speed.
Restoro is a one-stop solution for all your PC needs. It has a user-friendly interface making it easy for all levels of users to work around. It is compatible with all Windows versions
Click here to download Restoro and resolve the Fatal Error c000021a code on your PC today!

As in previous Windows 10, inside Windows 11 also when you press the ALT + TAB key combination you will get a preview of all running applications along with all Browser tabs so you can go through them and pick the one you want to switch to.
Alto, I personally am a big fan of alt-tabbing, I must admit that I am not a big fan of having multiple browsers tabs on screen when I do press key combo. Luckily there is a very easy way to turn this feature off.
Turning browsers tabs thumbnails off
Error Code 46 is a device driver error that occurs when Windows fails to access the connected peripheral device to the computer as Windows is in a process of shutting down.
Users experience this error on any Windows 2000 and later operating system versions and usually see a pop-up with the following message:
“Windows cannot gain access to this hardware device because the operating system is in the process of shutting down. (Code 46)”
Error CausesError Code 46 is caused when there is a temporary problem with windows system files which prompts that the system is undergoing a shut down when in fact is it not.
This prevents access to the connected devices. This error may also be caused by a registry issue in which case it has either become corrupted or damaged.
Unlike all other Windows error codes, code 46 is relatively easy to fix with the right knowledge and does not pose any serious threat to the well-being of your PC. Here is how you can do it.
The simplest method to resolve Error Code 46 is to run a restart of your computer.
The error is most commonly a temporary registry glitch that prevents you from accessing the device connected to your computer. Upon restarting your computer, it will resume working properly as before.
There is no need to run a troubleshooting wizard, use system restore, or run anti-virus software to scan and remove malware or spyware. A simple restart is all that is needed.
Although the error code can be resolved upon restarting the computer, there’s a possibility of damaged or corrupted Windows registry files. This can be fixed by using a program like DriverFIX.
DriverFIX, with its user-friendly approach to help you fix your PC issues, comes with an integrated database that detects which drivers you need to reconfigure within just a few seconds and downloads it automatically.
It further ensures that your drivers are installed in their entirety leaving no room for any corrupted or damaged registry.
Error Code 46 may not be much of an issue, however, to prevent any risk of a Windows system corruption can be disastrous for your computer.
DriverFIX helps you fix your PC registry and device driver problems with user-friendly software and an integrated database. The database which consists of detailed information on what device driver needs to be installed will automatically download the required device driver without you need to refer to your hardware instruction manual.
Registry problems resulting from incomplete program installations and viruses such as malware and spyware damaged registry files. This affects your PC in serious ways.
DriverFIX further has an automatic backup and restoration system that helps create system ‘checkpoints’ which allow you to roll back to a healthier state and resume operations. This can help you avert any Windows error codes in the future.
Click here to download DriverFIX now!
“Connapi.dll Not Found" "This application failed to start because connapi.dll was not found. Re-installing the application may fix this problem." "The file connapi.dll is missing." "Cannot start [APPLICATION]. A required component is missing: connapi.dll. Please install [APPLICATION] again." "Cannot find [PATH]connapi.dll"
Error CausesOne of the selling points of Windows 11 was the ability to run Android apps natively in it without the need for any third-party software. It is not a big surprise that even after its release Microsoft is evolving and expanding Windows 11 and its features.

Microsoft is now rolling out an update for the Windows Subsystem for Android on the Dev Channel of the Windows Insiders program. The new version upgrades the core operating system from Android 11 to Android 12.1 (also known as Android 12L), which means the new system and app features in Android 12 and 12.1 are now available on Windows for the first time. However, not the new features in those updates apply to the modified version that runs on top of Windows. For example, one of the main improvements in 12.1 was a dual-pane notification panel for larger screens, but Android app notifications on Windows just show up in the Windows notification panel.
The upgrade also improves how Android apps integrate into Windows. The Windows taskbar will now show which Android apps are currently using the microphone, location, and other system services — similar to many native Windows applications. Toasts messages (the small popups that some apps use for temporary messages) are now displayed as Windows notifications, and the titlebar on Android apps will use the current activity name for the title.
Full changelog
The new update is limited to Windows Insiders for now, but once Microsoft fixes all the bugs, it should start rolling out to everyone on Windows 11 that has the Android Subsystem enabled.
Instaling and removing applications from your Windows can sometimes leave some traces that are unpleasant and can cause annoyances. One of these annoyances is the program in the startup section of the task manager.
If you ever opened task manager and went into the startup section trying to disable some of the startup items on your Windows boot there might be a chance that you have experienced and seen a program without any icon or information about it just sitting there.

This is due to some applications being removed from the system but for some reason, it still shows itself in startup and it is quite annoying. So here we will show you how to get rid of this annoyance so your startup is clean again without junk in it.
The first thing of course is to open the task manager itself and navigate to the startup tab. Inside the startup tab right-click on the column header and tick or enable Startup type and command line. Now you will see the location of the supposed file (that is missing or you could just go there by right-clicking on the item, but here it is greyed).

99% of the time startup type will be registry since the file is missing, if it was a file fix would be just to simply delete the file in the folder but since it was installed and not properly removed registry key is still present but the file cannot be found. After confirmation that the file is indeed missing and that the startup type is registry open the registry editor by typing Regedit in search and pressing enter.
Inside Registry editor navigate to: HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run. Inside on right part, you will see all auto-start entries added by installed applications.

Locate one that is causing issues by comparing its path with the path inside the task manager command line and delete the key. Once the key is deleted right-click on RUN on the left part and choose HKEY_LOCAL_MACHINE to quickly jump on that key location and repeat the process of key deletion if needed. HKEY_LOCAL_MACHINE will delete startup entry for all users and sometimes entry will not be present here since the application is not installed for all users or there are no other users on the machine.
After the procedure is finished, reboot your systems in order to apply changes.