Want to fix blue screen c000021a error with the simple solution
STOP: c000021a is fatal error, after this error Windows Logon Process terminated unexpectedly and system shut down. After this, error flash every time when you try to logon. System fails to boot up and you will not be able to logon in to system. System show blue screen.
Even the “Last known good configuration” and system starting in “Safe Mode” not solve your purpose. Several things are responsible for this error message –
- Any mis-match of system file on your PC.
- Installation of incompatible software, device driver etc.
- Corruption of DLLs of system
- Failure of Winlogon.exe or Csrss.exe
If you have recently installed any software or device driver which is not compatible, it can corrupt “gina.dll” file and cause this error. Immediately uninstall that software. Any update of windows can also corrupt DLLs of system and become responsible for blue screen c000021a error. This is the primary solution to fix c000021a but if this is not working then it might be possible that there is something wrong in Windows registry. As this problem is related with problem in DLLs of system.
Formatting and reinstalling OS is another option to make this error clear. But with this solution you will lose your data also. So Windows registry repair is the foremost and simple solution of such error.
Windows registry is the complex database where there is entry of registry value of all the information about software and hardware of system. Values instruct hardware and software to work properly. If there is something wrong means if there some wrong entries of value then system will not respond properly and may give this kind of error. To get rid out from such annoying blue screen c000021a error clean or repair damaged or corrupted registry entries.
Manually it is quite not possible so that you can take help from Windows registry repair software. Software simply and easily repair or clean damaged registry entries. It can effectively fixes all the errors related to DLL files, EXE files, System32 and other important files. It effortlessly manages and reestablishes registry entries. Software is compatible with all latest Windows operating system like Windows XP, Vista etc.