Best/fastest anti-virus for Vista use?

Personally I use Kaspersky 6.0. I love it. Lifetime virus updates, very fast and super efficient. It comes with all the goodies Norton and Mcaffee have (and I've used both) but with much much much less interference with the system resources.
My current laptop's resources are extremely limited, and I have to say that since I moved from mcaf to this, it has contributed significantly to my laptop's performance. I got it free with my laptop's last repair as a gift from the technicians. I havent tried Avast! or AVG yet. I will next time something in my laptop fails

 

I don't like security suite's that much, after having to endure using my stepmom's computer with "Mccrapy" Security Center. *Shudder* Anyway, for anti-virus on my own computer (see sig) I use AVG. For anti-spy/adware, I use Spyware Doctor Free Edition which is part of the Google Pack. Finally for firewall, I use the free Comodo Firewall Pro. All of them seem to work pretty well. If you have to get a suite, I'd follow the others in getting Norton, either NIS or 360.

 

Avast and AVG are both JUST anti-virus. Generally, you'll get better protection out of individual programs than you will out of all-in-one packs.

One major tick in Avast's favor, though, is that, unlike most anti-virus software I've run, it is able to detect the trojans used by spyware (why most AV software ignores these, I'll never know), allowing even a badly infected system to be cleaned with just a few boot-time scans.

 

Add Opera web-browser to my set-up. So no spywares/adwares in the first place for me.

 

I have Mcafee Enterprise 8.5i on my laptop and it seems to work pretty good. It's the antivirus software provided by my school (GA Tech) and seems to be a combination of an antivirus and a firewall. Everything here at school uses it.

 

Kaspersky Anti-Virus 6.0 is the best all-around antivirus program and it better than any other.

 

Zone Alarm has become somewhat of a system hog these days. I use Kaspersky personally because it's fast and it's detection rate is high. Avast is a cheaper alternative and a good choice.

Probably the biggest move people should do to keep their system safe is install the NoScript or turn off JavaScript when they don't trust a link they are checking. Malicious JavaScripts will wreck havoc on your system. NoScript also allows you to selectly turn on JavaScript from just that link and thus has the side effect of shutting off advertisements, which can be a good thing.

 

I use NOD32 on Vista HP 64bit as when I got Vista there wasn't much choice for 64bit compatible AV programs. You don't really know it's there aside from when it pops up saying it's just updating the virus defs once, or sometimes a few times, a day.
I have it doing on access scans and background scans (where it just keeps scanning in the background.. can't remember the proper name for that) and there doesn't seem to be any noticable lag or delay.