Another veteran antivirus software program, SpyBot is excellent for repairing your system when a virus has hit you. That being said, it’s not really meant to protect your system, so you’ll only need it to repair your computer after a malware attack.
Another thing to note about SpyBot Search and Destroy is that there are a lot of fake versions of this program that are actually malware themselves, so you need to make sure that you trust the website you’re downloading it from.