Windows Thread, Windows XP - immediately logs user off after logon in Technical; I was asked to have a look at a laptop by somebody as a favour. This laptop is used by ...
6th March 2009, 09:48 AM #1
Windows XP - immediately logs user off after logon
I was asked to have a look at a laptop by somebody as a favour. This laptop is used by the guys kid and I'm pretty sure he's picked up a load of malware or a virus.
The laptop is running XP Pro and it boots up OK and presents you with the Welcome screen. Selecting the user then pops up the loading user settings message and then immediately displays the saving settings and logging off messages
I've run ClamAV across it (from Knoppix) and deleted a load of adware. I've also used an offline registry editor to check the Winlogon keys for dodgy entries. It still doesn't work!
It's really go t me stumped now this but curiosity has got the better of me and I don't just want to wipe it and start again.
6th March 2009, 09:52 AM #2
Use the UBCD4Win and the spyware tools from that to give it another good clean as ClamAV misses lots then boot into safemode command prompt and run an "SFC /scannow" on it.
6th March 2009, 10:00 AM #3
Forgot to mention that Safe Mode with Command Promt exhibits the same behaviour!
Originally Posted by SYNACK
6th March 2009, 10:07 AM #4
Last edited by mac_shinobi; 6th March 2009 at 10:11 AM.
6th March 2009, 10:14 AM #5
Malbytes Anti-Malware fixes a shedload of stuff like that, even if you have to slave the drive onto another system.
6th March 2009, 10:14 AM #6
@mac_shinobi: I've checked for that registry entry using an offline registry editor and the entry hasn't been changed.
6th March 2009, 10:15 AM #7
I would say definitely a profile related issue. Logon using the local administrator account, copy documents, favourites etc, delete the user and re-create the user, which will create a new profile.
It may or it may not be spyware related in my experience...
6th March 2009, 10:17 AM #8
Did I forget to mention that the exact same thing happens with the Adminstrator account?
Originally Posted by Michael
6th March 2009, 10:17 AM #9
- Rep Power
Backup and reinstall Windows, probably quicker than trying to repair!
6th March 2009, 10:18 AM #10
Has something gone wrong with the activation of it?
6th March 2009, 10:19 AM #11
That is very strange then Ric_, not seen that happen before. Maybe time to call it a day and extract the hard drive and copy documents etc.. then re-install as new. I can't see how else you can resolve this if you cannot logon as the local administrator!
6th March 2009, 10:22 AM #12
Probably but, like I said, curisity has got the better of me and I want to know what has happened.
Originally Posted by chippo
6th March 2009, 10:22 AM #13
I came across this a few years ago will look into it further and find the article I was after later on and will post back.
6th March 2009, 10:25 AM #14
I have seen this before.
Boot from a xp cd (or equivelent) and copy the files from c:\windows\repair to c:\windows\system32
6th March 2009, 10:34 AM #15
How to fix the Log On/Log Off Loop in Windows XP | eHow.com
As per that above guide you need to replace the userinit.exe file and the other exe file and double check the registry entries are typed correctly ( no typos etc )
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