Virus Problem

Use This Link directly to the download of Stinger. When the download box opens, select "Save", save it to your desktop or better yet to your hard drive. When the download completes, select "Open", and, if necessary, click the red-and-yellow Icon to open Stinger. Once Stinger is open, click the blue "Preferences" button.
In the top lefthand panel, "Scan these targets", the "Processes" box already should be checked. Add a checkmark to the "Boot Sectors" box. Ignore the "Interface" Panel. In righthand panel, "On Virus detection", make sure "Repair" is clicked. In the bottom panel, place a check next to "Scan all files", then click "OK". Click the green "Scan Now" button, and let it run and fix whatever it finds.

Then, See
This Topic
and
This Topic.

Doing as recommended in those topics should clear up many of your problems. Once you've gotten things cleaned up as well as possible using the tools provided, we can move on to whatever, if anything, remains.