This will not help you now, but I keep all serial numbers in a little notepad, so if the unthinkable happens(and it has)to me, I always can look it up. Another good practice is to keep all D/L's on CD's as backups. In case the drive dies, they can be re-installed. I had a major drive crash a while back. The only things I lost permanently were what I didn't have backed up on CD's. Everything else was on a backup CD, or the CD that came with the program. You can also keep serials on your PC wordpad and save them to a CD so they can be recovered. I LOVE my CD burner!