Tips to Avoid Viruses:

There are thousands upon thousands of viruses that exist today. With a couple easy techniques, you can avoid the majority of all viruses.
1- Don't open an email or attachment of an email if you don't know who or what it is. Email is an easy to way to put viruses on your computer and spread them to others.
2- Don't download anything if you haven't read any reviews on what you are downloading. If you want to download something, search the internet for reviews about that product, so you know whether the product is reliable or not. Make sure the review site you look at it reliable as well, as forging a website with reviews can be done easily.
3- Keep your viruses definitions, spyware definitions, and firewall up to date. Whenever an update is available, be sure to update. Since viruses are constantly being created, it is important to be scanning using the latest available information.