[Utilizer]

I tried installing BitDefender Free...

That is a Windows (TM) program. It will run under Linux about as well as it would under a Mac or OS/2 Operating system -in other words; it will not. Linux does not need windows or dos programs to run. That is the same as saying that you tried to install MS Office in your Linux machine but it won't work. More to the point, bitdefender is not necessary on a Linux machine.

[Resettozero]

More to the point, bitdefender is not necessary on a Linux machine.

Good to hear. But, still...

"Linux is no longer immune to security threats" http://www.bitdefender.com/business/antivirus-for-unices.html

and

"Install free Bitdefender antivirus on ubuntu"

http://ubuntuguide.net/install-free-bitdefender-antivirus-on-ubuntu

(The intent of my postings got lost. It was to replace XP with a free OS as good as XP that home non-professional users familiar only with XP could use for a year or two. Thanks anyhow.)