A program called PC Center ran on startup in one of the user areas on my PC, Vista 64.
It seemed to do a scan and when it finished, I closed it and the user area went blank and now will not come up. The other user is OK - can't find the exe - PC.exe. Not really sure what info to give, the second user area is a black screen, task manager will come up, but nothing else... Help?

What do you see in Task Manager under the "Processes" tab?

I can't find a program named "PC Center" on the web. Can you give more information about that program?

Any changes that either happened or that you perhaps made to your computer around the time that the problem started; particularly any Software or Hardware that you installed or setup.

What OS?

Check startup items
-Start, run, type msconfig and hit Enter
-Go to startup tab
-Look down list of items there for your program and if it is there, make sure you have a check there, if not, check it and click Apply and restart

Was it preinstalled with system or something installed at a later date if info did not help out