Posted 26 November 2006 - 01:02 PM
Are you talking about viruses or spyware-adware ? I started out using Norton Systemworks for my PC protection. I switched to AVG and when installing the AVG it found some stuff that NS didn't find. I used AVG for a while and decided to switch back to Norton. When I installed NS it found stuff AVG didn't find. The next year I switched to PC-cillin and when I installed it, same thing, it found stuff the NS didn't find. I recently went to Norton Internet Securities 2007 and it did the same, finding stuff the previous program didn't find. Why? I don't know, maybe someone else can tell you.
I use Webroots' Spysweeper and recenlty downloaded AVG's spyware program(it's free and they give a 30 day full version for free). I disabled the Spysweeper and used the AVG's. It found stuff, no real malware but cookies. I disabled the AVG and enabled Spysweeper and it found some that the AVG didn't. Kind of crazy, eh?
HP Pavillion a1723w, 820 dual-core processor, 250 G hard drive, 3 G RAM
Windows Vista Home Premium
Norton 360, Windows Defender, Webroot SpySweeper, AVG Anti-Spyware Free Edition, Spybot S&D
Altec Lansing Sound Speakers