Howtogeek shows you 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 youve done it too many times. Heres how to backup and then restore the activation status.
Note: we arent 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.

  How to Reinstall Windows Without Having to Reactivate