Analyze and understand Windows processes

winlogon.exe - Windows Logon Process

Do you suspect that the winlogon.exe file is causing problems on your PC? Check Windows for unnecessary active services using simplifast FREE!

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The following Potential Threat is posed by winlogon.exe:

  • If multiple instances of wuauclt.exe are running on your PC, this indicates a virus or Trojan attack.
  • If the winlogon.exe file is located in a directory other than C:\WINDOWS\System32\, this presents an elevated security risk in the form of a possible Trojan.

Information about the winlogon.exe process

The winlogon.exe process belongs to the Windows Login Subsystem and is responsible for user log-in and log-out as well as for loading of user profiles. In addition, it is also responsible for the so-called "secure attention sequence", reached using the Ctrl + Alt +Del key combination. winlogon.exe also validates Windows activation code. The process is constantly running in the background.

The winlogon.exe process may cause errors! You should additionally conduct a free scan using simplifast FREE to check whether your system is compromised by active Windows services.

Other system processes, that often cause problems: