AVG Free Edition is the well-known anti-virus protection tool. AVG Free is available free-of-charge to home users for the life of the product! Rapid virus database updates are available for the lifetime of the product, thereby providing the high-level of detection capability that millions of users around the world trust to protect their computers. AVG Free is easy-to-use and will not slow your system down (low system resource requirements).
Highlights include:
* Automatic update functionality
* The AVG Resident Shield, which provides real-time protection as files are opened and programs are run
* The AVG E-mail Scanner, which protects your e-mail
* The AVG On-Demand Scanner, which allows the user to perform scheduled and manual tests
* Free Virus Database Updates for the lifetime of the product
* AVG Virus Vault for safe handling of infected files
Change log:
Improvements
- Improved detection for some types of infections.
Highlights include:
* Automatic update functionality
* The AVG Resident Shield, which provides real-time protection as files are opened and programs are run
* The AVG E-mail Scanner, which protects your e-mail
* The AVG On-Demand Scanner, which allows the user to perform scheduled and manual tests
* Free Virus Database Updates for the lifetime of the product
* AVG Virus Vault for safe handling of infected files
Change log:
Improvements
- Improved detection for some types of infections.
Fixed bugs
- Files are moved into Recycle bin on Windows 2000 with FAT32 partitions without delay.
- Fixed problem with some dial-up adapters detection.
- RAR Multi-volume archives are released correctly after test is finished.
- Fixed possible problems with scanning some types of archives.
- Fixed problem with blocking sending/receiving emails on Windows Vista.
- Fixed possible vulnerability in RAR archives unpacking (reported by Thierry Zoller, n.runs AG).

avast! is the way to go.
avast! is the way to go.
Avast is marginally better than AVG. The best free AV is Avira.
http://www.pcmag.com/article2/0,1895,2135092,00.asp
May's proactive results were especially interesting. If this site is to be trusted, most of the popular AVs are failing to catch new types of malware. Avira (the paid version) did the best.
http://www.av-comparatives.org/seiten/ergebnisse_2007_05.php
No, they aren't. Avira has consistently better detection rates than AVG.
but it has a few probs.
1. Very Poor GUI
2. Very Complex GUI
3. Poor Anti-Spyware feature
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