Avira Antivirus is a really a effective antivirus we are using, we have recently written a tip on how to get rid of nagging screen in avira free personal edition antivirus, Now Avira Antivirus 10 has been released, below is a quick overview of avira antivirus.
Avira AntiVir Personal FREE Antivirus was developed to be a reliable free antivirus solution, that constantly and rapidly scans your computer for malicious programs such as viruses, Trojans, backdoor programs, hoaxes, worms, diallers etc. It monitors every action executed by the user or the operating system and reacts promptly when a malicious program is detected.

It is a comprehensive, easy to use antivirus program, designed to offer reliable free of charge virus protection to home-users, for personal use only, and is not for business or commercial use.
Following are some key features of avira antivirus free edition
1. AntiVir protection against viruses, worms and Trojans AntiDialer protection against expensive dialers
2. AntiRootkit protection against hidden rootkits
3. Faster Scanning up to 20% faster
4. AntiPhishing protection against phishing
5. AntiSpyware protection against spyware and adware NetbookSupport for laptops with low resolution
6. QuickRemoval eliminates viruses at the push of a button
Requirements To Install
1. At least 100 MB of free hard disk memory space (more if using Quarantine for temporary storage)
2. At least 192 MB RAM under Windows 2000/XP
3. At least 512 MB RAM under Windows Vista
4. For the installation of Avira AntiVir Personal: Administrator rights
Download Avira Antivirus 10 Free Edition | Source – Avira’s Official Blog.