Format hard drive and reinstall everything. This is a trojan. Sets off May 1 regardless infection date. Annoying, not normally destructive Easy to fix. The fixit program is available here at Nook Net.
Some people get a kick out of spreading panic and confusion.
After starting those chain letters, they sit back, laugh, and watch the panic that their email caused on the internet. These old viruses and their warnings, have been circulating for years. All rights reserved.