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Userinit Logon Application

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userinit.exe. What is it?

Userinit.exe is the Userinit Logon Application. This file is part of Microsoft Windows Operating System. Userinit.exe is developed by Microsoft Corporation. It’s a system and hidden file. Userinit.exe should be located in C:\Windows\System32 and its usual size is 39,146 bytes.

Important: viruses and other malware often attach themselves to this file. HAXDOOR-DP can mask itself as userinit.exe. Scan your computer with Auslogics Antivirus to make sure it's not infected.

Userinit.exe is a key Windows Operating System process. It manages different startup sequences on computer startup. This process specifies the programs that Winlogon runs on user logon. By default, Winlogon runs userinit.exe, which runs logon scripts, re-establishes network connections, and then starts explorer.exe, the Windows shell. Userinit.exe is important for computer stability and should not be disabled or deleted. If you delete it, you will not be able to log into Windows.


The userinit.exe process is safe and disabling it can be dangerous, because programs on your computer need it to work correctly. Some other processes use the same file name.

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General Information

Security risk: Free spyware & virus scanRegistry Errors: Free scan (run Registry Cleaner)Uninstallation: N/A Uninstall (run Unistall Manager)Disk & Memory Usage: N/A Free scan (run Task Manager)


Author: Microsoft CorporationPart Of: Microsoft® Windows® Operating SystemCommon path(s): %SYSTEM%
subfolder %WINDOWS%
subfolder %SYSTEM%

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