If u want to choose an antivirus make sure it isnt norton..bcoz it is just not worth it...ppl say that it is the best antivirus on the planet but they r wrong they r only the best selling and that is only becoz of brand loyalty and hard marketing...it is know far from being the best antivirus becoz it cannot even protect a basic home pc..while using norton my pc was infected 11 times but the viruses wre detected only 8 times....
After my last system crash I switched over to antivir and I havent had more than 1 virus problem since my pc was reformated.......i wuld sugges mcafeeavg kasperskyor my fav antivirin fact most of these r free for ome use which makes it worth it coz ppl do want to spend much on their home pc security when they already hav to give tons on their offfice pcs...and also it takes up alot of memory than it should or any antivirus should.....