windows starts, but can't run or select anything

[Guest]

Windows starts ok. Everything is fine if I log in as guest, however if I log
in as myself my desktop comes up but i can't select anything or run any
programs. I can only bring up the task manager and the scvhost.exe is using
most of the cpu. Any ideas how I can fix this.

 

[Malke]

Windows starts ok. Everything is fine if I log in as guest, however
if I log in as myself my desktop comes up but i can't select anything
or run any
programs. I can only bring up the task manager and the scvhost.exe is
using
most of the cpu. Any ideas how I can fix this.

The First Question Of Troubleshooting: what changed between the time
things worked and the time they didn't?

The Second Question of Windows Troubleshooting: what is the
malware/virus status of the machine? If you think it is clean, what
programs (and versions) did you use to determine this?

Be sure the computer is clean:
http://www.elephantboycomputers.com/page2.html#Removing_Malware

In order to run antimalware programs, log on as the built-in
Administrator. If you have XP Home, you must go into Safe Mode to do
this. The default password is a blank.

Malke