I've recently had a similar experience after cleaning our a customer's computer. The "winlogon.exe" file was infected and removed by the antivirus program. In such cases, you'll need to use the Windows XP Recovery Console, then extract a "good" winlogon.exe file from your XP CD or from the "i386" folder on your computer.. A good, clean "winlogon.exe" file should be placed in the "C:\Windows\System32" folder.. (In one such case, I was able to use the Recovery Console to search the System32 folder where I found the correct "winlogon.exe" file which had been renamed by the virus.. I fixed the name of the file and it cured the issue.)
Another option is to use the Windows XP disc or the computers Recovery Disc to run a repair install.. It should also replace the missing/corrupted "winlogon.exe" file.
Hope this helps.
when i start my desktop e machine computer using windows xp i get to the log in page.
I enter my password and and it says: logging personal settings and then it inmediatly logs me off. tried in safe mode and does the same.
tried in administrator and does the same.
I had just turned off a lot of programs that came upon startup and i might have done something STUPID