If you are not living in total isolation, it is quite likely that your computer will at some point be vulnerable to viruses. So you need something that can protect you from it.
There is not shortage of these products. Antivirus software can be downloaded for free, you can use online scanners, you can buy it in the nearest supermarket alongside potatoes and diapers and I guess you even got a CD from your ADSL supplier and from your PC dealer.
But the quality of these programs differ a lot. And some of them totally drain your computers resources. A standard install of some of these might even make it impossible for you to be able to do your work on the computer!
Through a friend that run an ISP I was made aware of a company called Eset that have a product called NOD32. He recommended that I tried this antivirus solution and I have not regretted it for a second. It is fast, it uses very little resources and it performs well in all tests I have seen so far.
If you need a good program for your facility, your office or your home, I suggest you take a look at it. There is a 30-day free version that you can download and it is not crippled in any way.
