Try running an online virus scan.
Before using ANY of these tools, do the following:
Delete TIF’s and history.
Empty your recycle bin.
Disable system Restore.
The reason you need to disable system restore is that many of these pests like to
hide within the restore files. These are protected by Windows, therefore the scans
can’t delete the pests.
An online scanner is available at:
Trend Micro or
Panda or
McAfee or
Symantec