Windows 7 cannot log on it logs out

[paul1961]

i have windows 7 home. computer logs me off when i log on. oddly other usesrs on same pc are unaccepted. of five accounts only two are affected. any ideas please

 

[Scott_D_Bowen]

Try holding down the Shift key as you login and keep it held down for 3 minutes.
- It might be a prank in your StartUp folder.

Official Microsoft article: http://support.microsoft.com/kb/89354

Once in just remove it.