Installed and ran Malwarebytes- cleaned up 12 viruses.
can you post the scan log
try clearing your browser cache/temp files
TFC - Temp File Cleaner by OldTimer
http://www.geekstogo.com/forum/files/file/187-tfc-temp-file-cleaner-by-oldtimer/
TFC requires a reboot immediately after running. Be sure to save any unsaved work before run
Then avast boot scan http://spgscott.wordpress.com/tutorials/avast-boot-time-scan/