I would like to see a list of all the freeware or opensource variants of Anti-Malware software. Could you sum up some of the better ones here in this posting? Hope to see the choices of Anti-Malware software that is compatible with other security software like firewall, anti-trojan, anti-virus, anti-spyware etc. I currently have installed: ZoneAlarm Free (latest version) AntiVir Personal Edition (updated daily) TrojanHunter 4.2 (updated frequently) SpyBot Search & Destroy 1.4 (updated frequently) I do also run Lavasoft Ad-Aware (latest free variant) on some of my other computers. I would also like to install emsisoft a-squared anti (somename) when it is released in version 2.0 (which I hope is soon). I allready got Acronis TrueImage and like to install some GoBack software (either Symantec's GoBack or a competitor). Else I think my laptop got some revert to empty Windows XP as it came from factory (It is a Acer laptop), but this does not prove useful unless I want a clean start ofcourse. BTW, I got the Raxco PerfectDisk software too in case it may cause compatibility issues, but Raxco PerfectDisk is simply a defragmentation utility only (not a anti-malware purpose use tool). Windows XP Home is the OS with latest Service Packs and patches. I am open to strengthen the security on my computers as long as it does not cause compatibility problems. Can you get overly paranoid regarding computer security, really? Sometimes we probably all feel a bit paranoid when we look for new tools to try out. I certainly hope to make my anti-malware arsenal even more powerfull.