How to Reinstall Windows Without Having to Reactivate

Every time you format and reinstall your PC, you have to activate Windows again, which can sometimes be a pain once you’ve done it too many times. Here’s how to backup and then restore the activation status.
Note: we aren’t going to cover how to reinstall Windows, since you should know how to do that already. This article just covers backing up and restoring your activation. Read More on How To Geek
Posted on How To Geek, 10/21/2011