Looking for an anti virus software

I know one. Is called "stop downloading porn".

avira free + Comodo firewall = the best you can get for free.

I'm using Panda Cloud antivirus. Works fine.

A few others have said this, but I'll second it. MSE is the least laggy antivirus you're going to get. You might want to look for other things that might be lagging your computer, because I doubt it's MSE's fault. Run ccleaner, run a defragger, and take a look at some of the other background stuff you're running before even thinking of replacing MSE. Every other scanner I've tried in the last few years had slowed down my machine significantly, but MSE seems to be lag-free.

Long time ago I used Kaspersky back when it was very slow. So I switched to NOD32. Been using it for a year or two. Then tried Kaspersky again, and damn, what a difference! Never going back to NOD32 again.

Been using NOD32 and ESET Smart Security 5 for about 4 years now. Latter includes gamer mode that minimizes CPU usage while running a full screen app and can be set to trigger automatically, which I think is pretty neat. Not free per se but pretty damn worth it, IMO, had zero problems with it so far.

download advanced system care 5, its great for speeding your pc

Kaspersky?

avg or antivir.

both very good and free

I'm an IT professional, and at home, for free, I use Microsoft Security Essentials. You must have a legitimate (or at least a WGA-cracked) copy of Windows.

I use windows security essentials aswell small, light, works and FREE!!!

I'm using Avast free. I'm okay with it.

Well, it doesn't have to be your anti virus software at fault here. Have you tried other options like defragmenting?

Webroot.

Why you need an Anti-virus?!

brain.exe

Avast or Avira
I still prefer no AV tho

i use Avg , and it never lag at all u can even disable it for some time to play so it don't bother u , but the last ver have some weird ad-dons.

Malware Antibytes, ESET, McAffe, Avast.

I use Microsoft Security esentails along with comodo firewall and have malwarebytes and Super Antispyware along with spybot search and destory as backup infection cleaners.Plus MSE doesn't lag the cpu,you proably have a bunch of other crap running making it lag or your cpu is so old that it can handle much.

avast and mse

Thank you all for sharing witch anti virus is the best