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Toshiba Error Code 0xC000021A

Error 0xc000021a probably occurs due to an incompatible software or driver on your operating system. It is a blue screen error code usually faced by Windows 7, 8, 8.1, Vista users. Other names for this error code are- Fatal system error and status system process terminated error

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Toshiba Error Code 0xC000021A

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  1. Toshiba error code 0xc000021a Toshiba error code 0xc000021a The Windows 10 Toshiba error code 0xc000021a is a bug check error that usually includes ‘STATUS_SYSTEM_PROCESS_TERMINATED’. It can result in a BSOD and even a boot loop that is difficult to break out of without booting into safe mode. If you need to fix Windows 10 Error 0xc000021a, I can help. The error occurs when either WinLogon or Client Server Runtime Subsystem (CSRSS) presents an error or is corrupted. Windows thinks it has been hit by malware or security is otherwise compromised and stops booting. There are a couple of things we

  2. can do to fix the error before having to perform a system reset or restore. To address this error, we need to use our old friends SFC /scannow or DISM. If you cannot boot into the desktop to access CMD, boot into safe mode using install media and select ‘Safe Mode with Command Prompt’ from the options. Cause Of BSOD Error 0xc000021a On Windows 10 When you get this error it is usually caused by an issue with one of two files. Winlogon.exe— This file handles the log on and logs off process when you get to the windows 10 desktop. This file could have been deleted, damaged, corrupted or has been replaced by a 3rd party software. csrss.exe— This file is a core operating system file that handles the graphical instruction of the windows 10 system. Again this file could have been deleted, damaged, corrupted or has been replaced by a 3rd party software. So what causes the 0xc000021a stop code? The 0xc000021a stop code is usually caused by an issue with a device driver or a corrupt operating system file. Faulty hardware will also cause this error.

  3. It can be very scary when you are experiencing this BSOD error 0xc000021a and your machine will not boot to the desktop, You worry you will lose all your data. Well don’t worry as this issue is easy to fix, Just follow the steps listed below. I have even created a video below which shows you how to Easily Fix The BSOD Error 0xc000021a On Windows 10. How To Fix BSOD Error 0xc000021a On Windows 10 How To Fix BSOD Error 0xc000021a On Windows 10 How to fix the error code 0xc000021a On Windows 10? To fix the error code 0xc000021a On Windows 10 do the following Method 1 Method 1 — — Fix Corrupt Files Fix Corrupt Files I always like to start by fixing corrupt files on your system as I have seen this resolve many non-booting systems in my time. I also like doing this first as it means we are not making any changes to the system. To fix the corrupt files do the following. -Insert your Windows 10 DVD into your system and boot to the DVD. (If your system does not have a DVD drive you can download a Windows 10 ISO from the microsoft.com site and make a bootable USB flash drive) On the first screen, you get to click on “troubleshoot”.

  4. Next click on “advanced options” Then Click on “command prompt” A black window should now pop up, in the window type chkdsk C: /f /r this will perform a chkdsk on your system which will /f = Fixes errors on the disk, and /r locates and recovers bad sectors. If you get a y/n prompt type y and hit enter. Now reboot your machine and hopefully, it will boot correctly now. Method 2 Method 2 — — Startup Repair Startup Repair If the previous method didn’t work we need to perform a windows 10 startup repair. Again boot to the Windows 10 DVD. On the first screen, you get to click on troubleshoot. Next click on “advanced options” Then Click on “startup repair” The startup repair program will start and will scan your Windows 10 machine and fix any startup issues it finds. When the repair has finished removing the windows 10 DVD from your system and reboot.

  5. Method 3 signature enforcement Method 3 — signature enforcement — Disable driver Disable driver Method 1 and 2 should fix 99% of 0xc000021a windows 10 startup issues, but if you are still having issues there are a few more things we can do. Boot to the Windows 10 DVD. On the first screen, you get to click on “troubleshoot” Next click on “advanced options” Next click on “startup settings” Then click “disable driver signature enforcement”, then hit restart. Monitor the situation and if the BSOD 0xc000021a is not resolved move on to the next step. Method 4 anti Method 4 — anti- -malware protection — Disable early malware protection Disable early- -launch launch Repeat the steps in method 3 but at the last screen instead of selecting disable driver signature enforcement select Disable early- launch anti-malware protection, then hit restart your machine.

  6. Method 5 installed software Method 5 — installed software — Uninstall recently Uninstall recently A recently installed software on your machine may be causing the stop code 0xc000021a from appearing. Repeat the steps in method 3 but at the last screen instead of selecting, disable driver signature enforcement select enable safe mode and select restart. Hopefully, your machine will boot to your windows 10 desktop. If it does click on the start menu then type in programs and select “Programs and Features” The below window will now popup. Sort the programs by installed on, Now uninstall as many recently installed applications as you can. Now click on the “View installed updates” on the left-hand side of the window. This will show you the operating system updates which have been installed. Again uninstall any recently installed updates. When you are finished uninstalling recently installed applications/updates reboot your system. Method 6 Method 6 — — Run an SFC Scan Run an SFC Scan

  7. Repeat the steps in method 5 and boot into safe mode. Now click on the start menu and type in cmd then right-click on the program and select “Run as administrator” when the black window pops up type in SFC /scannow and hit enter. This command will scan all protected system files, and replace corrupted files with a cached copy that is located in a compressed folder at %WinDir%\System32\dllcache. When the scan has finished rebooting your machine. Method 7 Method 7 — — Run a DISM Scan Run a DISM Scan Repeat the steps in method 6 but apart from running the SFC /scannow command from the cmd window type dism/online/cleanup-image/restorehealth and hit enter. This command will check installed windows updates/service packs for issues/corruption. When the scan has finished rebooting your machine. Method 8 Method 8 — — Update Device Drivers Update Device Drivers Some times a device driver becomes corrupt or has a bug in it which can cause the stop code 0xc000021a. To update your device drivers follow these steps.

  8. Open up device manager (click start, type in “Device Manager” and hit enter) Now expand the driver that is causing the issues (Below I am using the network adaptor as the example.) Right-click on the device and select properties, then click on the driver tab and note down the driver date and version. (We can see below the version is 3.0.2.201) device manager Now search on the internet for an updated driver. We are looking for a driver newer than 26/03/2016 or 3.0.2.201. Download that driver and save it to your machine. Now head back to the device manager and right-click on the device and select update driver, Follow the prompts to update. update driverupdate driver Restart your machine after the driver has been updated. Monitor if your machine still has the stop code 0xc000021a issue. If the issue is still happening to continue to the next step Re Re- -Install Device Driver Install Device Driver Updating the driver should have resolved the issue, but sometimes if the driver is corrupted it needs to be uninstalled and re- installed. To do this follow these steps

  9. Open up device manager (click start, type in “Device Manager” and hit enter) Now expand the driver that is causing the issues, right-click on the device and select “Uninstall Device” uninstall the driver When the driver has been uninstalled reboot your machine. This will completely remove the driver from your system. The driver should auto-install when windows 10 restarts. Go back into device manager and right-click on the device and select update driver, Follow the prompts to update. Method 9 Screen Troubleshooter Tool Method 9 — Screen Troubleshooter Tool — Run Windows Blue Run Windows Blue Windows 10 has a built-in blue screen troubleshooter tool that we can use to troubleshoot the stop code 0xc000021a blue screen crashes. To use the tool follow these steps. Click on the start menu and click the Settings app Click on Update & Security In the left menu click on Troubleshoot Under Blue Screen click on Run the troubleshooter System Service Exception Troubleshooter

  10. Now follow the prompts The tool will now scan your system and will automatically apply any fixes needed Reboot your machine Method 10 Method 10 — — Run Windows Update Run Windows Update The stop code 0xc000021a error may have been fixed in a windows 10 update, We will install the latest windows 10 updates to make sure our system has the latest updates. To update your Windows 10 follow these steps 1.Click start > Settings 2.Next click on Update & Security 3.Now click Windows Updates and then click Check for updates 4.The latest windows updates will now automatically download and install 5.Reboot your machine If your machine is still crashing to a blue screen of death and showing the error 0xc000021a then we can try to update windows 10 to the latest feature update.

  11. Method 11 Update Method 11 — Update — Run Windows Feature Run Windows Feature To the latest version (Currently, Feature update version 1903) To do this follow these steps At the windows 10 desktop Click start and click settings (Cog Icon) windows 10 settings Click on Update & Security update and security Halfway down the screen, it should say “Feature update to Windows 10, version 1909” click on Download and install now latest windows 10 feature release 1909 Your machine will now download the feature update, expect this to take around 5 minutes. Once the download has completed it will start to install on your system. When the install has finished the status should change to Pending Restart, at this time click restart now

  12. Conclusion Of 0xc000021a BSOD On Windows 10 Conclusion Of 0xc000021a BSOD On Windows 10 Hopefully, you have managed to fix this BSOD error 0xc000021a on your windows 10 machine. I created this post adding my personal experiences with this error and I also spent hours researching this error online finding many fixes which I have listed here. I hope this article has been helpful for you, I would be interested in your feedback in a comment below. I would also be very grateful if you can share this article via the links below. The error 0xc000021a usually appears on Microsoft windows 10 machine after upgrading from a previous version of Microsoft windows or after running a repair installation. When you get the blue screen of death the below will show on your screen.

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