How To Fix Stop Errors C00021a Fatal Sistema Error

  Over the past few days, some readers have informed us that they have encountered a fatal system with the “Stop c00021a” error. SHUTDOWN: Error c000021a (Fatal System Error) occurs when the Windows NT kernel detects that the Winlogon.exe or Csrss.exe processes have failed. When this error completes, the Windows NT kernel shuts down and … Read more