Can you rank the best to worst antivirus and antispyware software for PC? Thanks!

ANSWER: Best to worst? Ok this is what i get from my experience…
Anti-virus
The best – NOD32 2.7
Kaspersky Anti-Virus 6.0
Trend Micro Antivirus 2007
ZoneAlarm Internet Security Suite 7.0
AOL Active Virus Shield
CA Internet Security Suite 2007
Avast! Free Edition
AVG Antivirus Free Edition
The Worst – Norton AntiVirus 2007 Anti-spy Software
The best – Spy Sweeper
CounterSpy
Trend Micro Anti-Spyware
Spyware Doctor
Ad-aware SE Pro
Spyware BeGone
McAfee AntiSpyware
Spyware Terminator
The worst – Spyware Killa)

Source: Yahoo Answers

I urgently need a good Antivirus which is compatible with Windows XP and is fast in scanning documents. I also need an antivirus which can scan in DOS mode or when the computer is booting.

ANSWER: Right now AVG. Avast is okay as well as McAfee. Norton is not exactly the best, but they are the most popular due to publicity. Avast uses a lot of memory, so if you have enough use that. However, over all it would be AVG. You can research the product and see how well it does and how easy it is.)

Source: Yahoo Answers

Ed’s note: The free AVG version is pretty good for basic antivirus protection but it doesn’t protect you against the latest rootkit threats, phishing email scams, instant messaging and web surfing threats.

well i have a ton of stuff on my computer and panda is not doing anything. If anyone can help me i would love that and please have it include antivirus,spyware,adware scan and blocker,automatic updates,and pop up blocker (optional) and if you can incluse a link it would be a lot easier thank you. have a good day!

ANSWER: Personally, I prefer the Avast Antivirus. Out of the many products available, it puts one of the smallest drains on system resources (It slows you computer down the least). There is a free version available, and the only valuable feature it lacks is an option to schedule a recurring scan. It does not have a popup blocker, however, I don’t know of any antivirus programs that do. There are computer security packages that include both. I can reccomend that you either install something else to block popups. You can use a Yahoo or Google toolbar, both of those block popups. A better solution would be to use a browser that has a popup blocker built in, such as Firefox. Even the latest version of Internet Explorer has one built in. Just be sure it is turned on. If you are still getting popups, especially if you get them when you aren’t even browsing the web, you might have adware. Look at these products (All have free versions): Adaware, Spybot Search & Destroy and Microsoft Windows Defender.)

Source: Yahoo Answers