Use this tool, it will remove bad and good, so be careful. Let me know if you need steps on how to use it ( if you become stuck ) or check youtube.
http://usa.kaspersky.com/downloads/TDSSKiller
Also, some spywayre\adware\etc likes to self replicate and can detect that they are being scanned, so they hide from the scanners.
Make sure you unplug your internet cable after you download the tool and run the scans.
This will kill it good.
Worse case scenario, backup your porn and re-image your pc.