First of all we need to know what a computer virus is and why people make them and distribute them.
A computer virus is a small program that inserts itself into other computer programs and sometimes perform harmful activities such as steeling data and disk space. It can also access private information and use it somewhere else.
Why does anyone write these virus programs and distribute them to others is the big question. In some cases it is a criminal act in order to steel some values from someone else and sometime the reason is a complete mystery.
Computer viruses cause billions of dollars’ worth of damage each year. In response free open-source antivirus programs have been developed and a multi-billion dollar industry of antivirus software vendors have popped up.
It is very important to protect your computer with a good Antivirus program. And you are not just protecting yourself, you are protecting the community.
When you buy a new computer is comes with trial version of antivirus program. Just before the trial period ends you will be offered to buy the program for $50 to $100 But instead of spending all that money you should have a look at the free antivirus package that are available to you.
I myself use Avast Antivirus (Home edition). I have been using it for years and my computer has never been affected with computer virus. It is free and you can download it here.
AVG Free Edition is a popular choice and is working great with Windows 7 and Microsoft has certified it as officially compatible. You can download it here.
Avira Antvir offers a free antivirus program and it is compatible with Windows 7. You can download it here.
Microsoft released last year a free antivirus package called Microsoft Security Essentials and it has received high rankings from independent Antivirus and Malware test labs. You can download it from here.
Before you download and install a free antivirus program I recommend that you uninstall the trial antivirus program that came with the computer.
Running more than one antivirus program at the same time can potentially cause conflicts that affect PC performance.
After installing a new free antivirus program make sure you will get automatic updates.
Un updated antivirus program is no protection at all.
I wish you all the best.
Please do not hesitate to leave a question og comment below.