Here is three freeware software programs which will keep your computer free from spy ware, add ware, viruses and other annoying internet junk. This package is all you need, just make sure to check for the latest updates. Please use firewall in addition to this package.

Spybot - Search & Destroy - Removes, spyware, add ware. Free.

SpywareBlaster - Keeps Unwanted and bad web sites away. Free.

AVG Anti-Virus Free Edition - Keeps real time protection from viruses, with e-mail scanner. Free.