You don't provide enough information to get a good answer, so here are
generic Windows troubleshooting steps:
1) scan with current antivirus using updated definitions; 2) remove
spyware with tools such as Spybot S&D (www.security.kolla.de) and/or
Ad-aware (www.lavasoftusa.com) - note that it is a good idea to do
virus and spyware scans in Safe Mode; 3) delete temporary and Temporary
Internet Files; 4) stop unnecessary services/programs from running at
startup (see www.blackviper.com for a listing of services). After
making sure the computer is clean - does the problem persist? If yes,
then post back with details or contact good local computer repair shop.
