I got the free anti-virus scanner first off there website (Spyware Removal from CyberDefender Internet Security: offering virus scan and anti-spyware downloads) which found a lot of stuff on my system and got rid of the spyware and Trojans. I also had viruses, so I bought the upgrade which got rid of everything on my system. I have used the computer help twice and they were very helpful. So, for me, Cyberdefender works great.