Top free antivirus?

i want to know what is the best free antivirus i can recommend to a friend because i think his computer is infected can someone recommned 1..........

Top free antivirus?virus removal

Download Grisoft AVG 7.5 Anti-Virus,Anti-Malware.(free)

AVG is a collection of anti-virus protection tools that gives you full protection against viruses, worms, Trojans and malware. AVG provides you with all that you need to be completely protected: including a tool for scanning your hard drive and e-mail, as well as a real-time shield to prevent infections.

Top Features

禄 Provides automatic update functionality

禄 Its a reliable anti-virus scanning engine

禄 Provides free Virus Updates for life

禄 Options to define file name extensions

禄 Real time protection with resident shield, email scanning

http://free.grisoft.com/doc/5390/lng/us/...

PC Tools AntiVirus Free Edition feature highlights

Protects your PC as you are working, surfing and playing

Detects, quarantines, disinfects and destroys Viruses, Trojans and Worms

OnGuard鈩?protects your computer against threats in real-time

Automatically checks for frequent updates against the latest threats.

http://www.pctools.com/free-antivirus/

*Never install more than one anti-virus on your PC, as they may conflict with each other. On the other hand, its always good to install more than one anti-spyware.