One thing you should never do is run a Windows computer without some form of virus protection. In the past, in order to get any decent virus protection, you had to spend big bucks on security suites like Norton and McAfee; but now AVG Free protects you against the viruses and spyware for free.
AVG has been in the virus protection business since 1991 and the free version of its AVG Anti-Virus program have been widely used by myself and many other users for many years as a free alternative to high priced year-by-year antivirus subscriptions.
Another added bonus of the free AVG Antivirus software is that the program uses relatively few systems resources so it won't slow down your computer.
The free version of AVG Antivirus works on the newly released Windows 7 and offers the following protection.
Anti-Virus - Makes sure you can't get or spread a virus, worm, or Trojan horse.
Anti-Spyware - Prevents unauthorized information access by spyware and adware.
LinkScanner - Ensures every web page you visit is safe – even before you go there.
In addition to the free version of AVG Antivirus, the company offers two paid versions of the AVG Antivirus software with additional protection against downloaded files and identity theft.