Is there a free antivirus for IE that doesnt slow the OS down?

and if so which one?

because i have bt yahoo with norton antivirus and it bogs down my computer

Is there a free antivirus for IE that doesnt slow the OS down?network

Norton is one most bloated anti-viruses on the market and slows down your computer. If you want a free anti-virus I recommend in order of popularity, but please choose the right one for you (install only one):

1. AVG Free

a. A simple interface (easier to use than Avast! and Avira)

b. Can detect about 82.82% of viruses

Cons: low virus detection

2. Avast!

a. Real-time protection

b. It has an option to delete a virus once found

c. Can detect about 87.46% of viruses.

Cons: Too many icons and confusing user interface

3. Avira AntiVir

a. It can detect malware better than Avast and AVG

b. It's cute umbrella icon

c. Can detect about 94.26% of viruses

Cons: A very sluggish update

Is there a free antivirus for IE that doesnt slow the OS down?norton

I have used AVG Anti Virus, Zone Alarm Firewall, Spy-bot Search and Destroy and Ad Aware both spyware killers for years. They are all free for personal use and I have had no trouble with Viruses Trojans etc. AVG does not slow the system down as much as some other products and Zone Alarm allows a lot of personal configuration unlike the Windows Firewall. They can all be downloaded from the following link. http://www.computeractive.co.uk/... On the home page select downloads and then the appropriate category.I also use Windows Defender from the Microsoft site. It is safe to use two anti-spy products but never use more than one A/V as it can cause conflicts. You should run A/V and anti spy weekly. Hope this helps.
Avira is very good:

http://www.free-av.com/

If you would like to pay, NOD32 is perfect as it takes up little system resources.

Norton sucks!

=]
Test result from August 2007 AV comparatives :

AVG 97.75% (+user friendly+auto updates )

Avira 99.45% (+higher detection rate, -nag screen- no email scanner)

Avast 95.24% (-You got to register)
AVG works for me, and there is a free edition
I recommend AVG Free Edition. Find it here:

free.grisoft.com
AVIRA http://www.freewarefiles.com/program_9_9...