Well, the most cost-effective method for avoiding viruses would be to curtail your habit of random Internet surfing, downloading and installing unverified freewares, and sharing audio and video files on the Internet. However, since doing so will completely dry up the fun quotient of your Internet experience, it’s highly unlikely that you will follow these recommendations. You may also not like the idea of buying a licensed copy of computer security software, obviously because there are costs involved and as a true Internet surfer, you would want to have something that is completely free but is still able to do the job, i.e. prevent viruses from entering your computer system.

Based on these specific needs and requirements, I could have easily told you to download pirated copies of popular computer security software systems. But, I will never make such dubious recommendations because firstly it is illegal and secondly because most of these pirated or cracked copies are themselves embedded with loads of malicious software codes. So, if you use these pirated copies, you might either end up in jail or with a computer that has more of viruses than your files and folders. The choice is all yours.

For avoiding viruses, the one thing you can do legally is that you can download and use trial versions of popular computer security software systems that might be available. You don’t have to worry about the expiry of trail period because there are plenty of options available and you can continue using them one after another. However, since not all of these security systems offer full functionality in their trial versions, you might still have to compromise on the security of your computer system. This may work as long as you do not have any valuable data on your computer, but in case you have some, I would recommend that you get yourself a licensed copy of computer security software as soon as possible. You have no other option. Trust me!