AVG has a free version, but David J.'s idea sounds about like what I would do. I usually do a reformat and recovery when I get a virus. Just make sure you have a way to save everything you want to keep like a CD, DVD, or flash drive.
I have to think about two countries that are currently at war or have fought with each other in the past. I have to write one paragraph explaining the cause of the war. Then write a second paragraph describing the effects of the war on the countries' people, lands, and culture. I can't think of...