People.

Immediately.
Or at least in the next few days.
1. Do a backup.
Do a virus/spyware scan, then do a Backup.
If you don't have a backup system, at least use CDRs.
Or get a backup system.

2. Make a Restore Point.
If your system is too old to have this built-in, get Norton GoBack.

I've seen way too many people hurt lately by the torture if dying computers.
Please. You'll be glad you did.

*winghugs to those in need*.