Are you about to reinstall your operating system ?
Then you will need your software’s product keys.
Sometimes you may have misplaced the disk covers which have the product keys on them , so what do you do?
Try ProduKey which will be able to retrieve your Windows and Office keys.
Thet could also try Belarc Advisor, as it will display not only the Microsoft keys, but other license keys as well eg Adobe, Nero aswell as the programs and versions they are currently running on their computer.http://www.belarc.com/free_download.html