I downloaded Avast antivirus info, how do I eliminate the download off my computer?

Avast is a great free AntiVirus. I am not sure what your question is, but more great and free malware removers/protectors are:

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.

鈽?http://safety.live.com/site/en-us/defaul...

鈼?The Microsoft Windows Malicious Software Removal Tool checks computers running Windows XP, Windows 2000, and Windows Server 2003 for infections by specific, prevalent malicious software鈥攊ncluding Blaster, Sasser, and Mydoom鈥攁nd helps remove any infection found. When the detection and removal process is complete, the tool displays a report describing the outcome, including which, if any, malicious software was detected and removed. You can run this tool online FREE.