do google serach for: superantispyware malwarebytes they are both free. but you can pay for a version that has offers real-time scanning. I recommend Commodo for advanced computer users. It includes a defense module that acts as a system protector. You will see a lot of protection popups for your system. by default, it will ask you permission for every little thing.
Spyware Terminator: Includes Clam Antivirus. Scheduled scans. Relatively fast scans. Automatic updates. Realtime protection. Multiple settings. Won't slow your machine. No babysitting. Free.
