Originally Posted by
Greyfox
Start Spybot, put into Advanced mode (Click on mode, click on advanced,click on Yes to next dialogue). Then click on Settings, then Settings again, then scroll down through the settings until you come to the System Start Group. Click on Automatically run program at system startup. See attached screen shot.
As drragostea says, this will very quickly become a significant pain, and once you have cleaned up your PC, and providing you have an effective firewall, effective antivirus and Spybot's protection you shouldn't need to scan each time you boot up.
Hope this helps