Are there any real free software programs to protect my computer?

It has adware I can't get with the online protection I have now,I'm a 56 yr.old kidney cancer surviour 15 mos,now ,disabled and depend on my computer .

Are there any real free software programs to protect my computer?pop up blocker

All of these are ones that I personally use and all are free.After you install any of them,make sure you update them to get the full affect.

AVG anti virus/anti spyware remover.

AVG Removes I-Worm/Stration 路 BackDoor.Generic3.GBB and .GBC 路 Worm/Generic.FX 路 Exploit.WMF

http://free.grisoft.com/doc/5390/lng/us/...

Spybot - Search %26 Destroy detects and removes spyware, a relatively new kind of threat not yet covered by common anti-virus applications. Spyware silently tracks your surfing behaviour to create a marketing profile for you that is transmitted without your knowledge to the compilers and sold to advertising companies. If you see new toolbars in your Internet Explorer that you haven't intentionally installed, if your browser crashes inexplicably, or if your home page has been ''hijacked'' (or changed without your knowledge), your computer is most probably infected with spyware. Even if you don't see the symptoms, your computer may be infected, because more and more spyware is emerging. Spybot-S%26D is free, so there's no harm giving it a try to see if something has invaded your computer.