The powerful protective umbrella Avira AntiVir

Avira AntiVir, also known as "Little Red Umbrella," is a renowned German antivirus software, particularly powerful despite being only a few megabytes in size. It can detect and remove over a million types of viruses and supports online updates.

Currently, Avira supports Windows and Linux systems, and there are even versions available for PPC smartphones.

There are two main personal editions:

Avira AntiVir PersonalEdition Classic (free version, also known as the C version)

Avira AntiVir PersonalEdition Premium (paid version, also known as the P version)

Right now, the P version is offering a 92-day free registration key—go ahead and try it out!