Run "Hijackthis" preferably from a pen drive and check every process. There is a lot of help available with this on web. You can stop suspicious processes running. Disable System restore and do a FULL scan. Follow recommendations. Clean out ALL Temp Folders completely, including Browser cache and Java cache (via Control Panel Applet (if installed)
Is this familiar? Check it out.....
http://www.myantispyw...e-fake-spyware-alert/
Removal instructions work, I just fixed a friend's laptop. LSP fix will restore internet connection it can disable.