AVG Anti-Virus is no doubt the world’s most used and best free anti virus software brought to use by Grisoft. It has a very large database of viruses, trojans, worms and exploits and is able to detect and cure almost all sorts of viruses. AVG comes in both Free (free-of-cost) and Pro (commercial) software versions however the good news is that the AVG Pro version can now be downloaded for free for a certain period of time.
Unlike the Free version of AVG, the Professional version gives you some extra features e.g. better task scheduling and more anti-virus search options.
To claim your free copy just hop on to Computerative and download free licensed copy of AVG Anti-Virus 7.5 Professional. This offer is valid till January 17, 2008.
Here is a download mirror on Rapidshare and MegaUpload.
AVG Anti-Virus Professional costs you $30 usually so if you take good use of this offer, you can save some money for lunch 
Source: DownloadSquad
Wow, great find. Installing it on the Windows partitions of my parents’ computers now.
AVG is great!
Almost my PC was dead and I used AVG everything is perfect. Thank you very much