Easy Computer steps to clean a virus

Use a good free virus scanner and cleaner like AVG. It is free for home use, and inexpensive for office use.

They just came out with a new version which I have used several times and it is great!
It combines virus scanning and all the other junk like spyware, malware, and ad ware.
Get it here

http://free.grisoft.com/ww.download-avg-anti-virus-free-edition

more on upgrading later...