My daughter's dell laptop continued to act up.
After trying to run various virus scans, etc that were followed with critical errors
I then went to safe mode and tried same. OS went into a loop and kept
saying there was an error in windows explorer and needed to restart Win explorer.
Shut system down. Went to restore point. Still same outcome.
Then spent most of the day reinstalling Vista, drivers, etc.
Since machine is relatively new. Not to concerned with what may have lost.
So far, everything appears okay. Actually seemed to run quicker.
Ccleaner ran without issue now. Still need to complete the virus & malware scans.
Hopefully all set now.
Thanks for help on malware follow-up.