Avast! is it an antivirus or virus?

Hey, each time I uninstall avast! from any of my pc's it corrupts my OS (Windows XP) I had to repair before I can login to the desktop again, why is it like that?

Avast! is it an antivirus or virus?agv

It is an AntiVirus. Try the following free softwares to rid yourself of malware:

I prefer Avast, but AVG is just as great.

AVG AntiVirus

http://free.grisoft.com/doc/1

Avast Home Antivirus

http://www.avast.com/eng/download-avast-...

You may also want some other tools to run and use as well

SpywareBlaster

http://www.download.com/spywareblaster/3...

Spybot S%26D

http://www.safer-networking.org/en/mirro...

AVG AntiSpyware

http://free.grisoft.com/doc/20/lng/us/tp...

Adaware (Lavasoft)

http://www.download.com/ad-aware-2007-fr...

If you are currently having a problem:

鈼?Download and install AVG. Use it first and see if it finds any viruses or trojans.

鈽?http://free.grisoft.com/doc/1

鈼?After running AVG go here and run this virus scanner online. There is no need to install it on your computer.

http://housecall.trendmicro.com/...........

鈼?Microsoft's New Live Safety Center. Download this scanner to check and remove spyware, viruses, get rid of obsolete files and junk off your computer, and improve your PCs performance.