Windows 10 Error 0xc000021a
This is a common BSOD error which occurs when WinLogon or (CSRSS) Client Server Runtime Subsystem are causing a BSOD or it could be Winlogon or CSRSS are corrupted. You can also get this error from a corrupt or failed Windows update. This error code 0xc000021a can also point towards Malware. The error will cause can continuous boot loop. I will show you things you can try to fix the error 0xc000021a.
The 0xC000021A error can occur if Winlogon.exe or Csrss.exe stops working. This happens if:
- Corrupt operating system files.
- There was a failed Windows upgrade.
- Corrupt Windows Update
- Incomplete installation of a software program.
- Malware
I hope these resolve your error.
- I hope these resolve your error.
- chk disk /f /r
- sfc /scannow
- dism/online/cleanup-image/restorehealth
- dism /image:C:\ /cleanup-image /revertpendingactions
- Disable Driver Signature Enforcement
- Try booting to safemode with networking
- Roll computer back to a previous version of Windows
- Restore files from RegBack folder ( I have made video on how to do this)
- When all else fails try Reset your PC