Windows XP logon, logs off immediately

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If you have issues with your XP system that automatically logs you off upon a successfull logon which can be caused by Spyware (in most cases). One of those spyware applications is ‘Search Assistant’ which is usually located in the ‘C:\Program Files\WindowsSA

It can also contain ‘omni*.*‘ files in the Windows\System32\ directory that are linked to ‘Userinit‘ key. If you delete these files using your anti-virus or anti-spyware application, you are not able to login.

To be able to use the registry on the machine where you’re unable to login, you have two options:

– Use the recovery console
– Use another machine on your network and run the registry editor. Select ‘File–>Connect Remote Registry’. In the prompt box, enter the computer name of your PC.

Ok, here’s what to do when you access the registry:

1. Navigate to
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon

2. If there is a key named “OldUserinit“, delete the “Userinit” key and rename the “OldUserinit” key to “Userinit”.

3. The “Userinit” key should now say

WINDOWS_PATH” is a variable to where you have your windows installed.
It usually is like this “C:\WINDOWS\system32\userinit.exe,

After this Windows logon should work normally and you should be able to run a full system scan with your anti-virus application.

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