I recently purchased the $40 windows 8 pro upgrade deal. I already had windows 7 and was in the process of upgrading my computer to 32gb ram and a ssd so decided to take advantage of the offer.

I got the Windows 8 pro install utility to generate a iso for me and then made a usb boot stick and proceeded to install windows 8 as a clean install so I could start from scratch.

The problem came when I tried to activate windows and it said I could not. Even though windows 8 allowed me to perform a clean install the activation said I could not activate because I used the windows 8 upgrade to do the clean install?

After some searching I came across this article and it allowed me to activate my windows 8 installation.

http://www.ghacks.net/2012/10/27/windows-8-upgrade-clean-install-possible/

  • Open regedit by pressing Windows-q, entering regedit and selecting the result from the list of hits.
  • Navigate to HKEY_LOCAL_MACHINE/Software/Microsoft/Windows/CurrentVersion/Setup/OOBE/
  • Change MediaBootInstall from 1 to 0
  • Go back to the start screen and enter cmd there.
  • Right-click Command Prompt and select to run it as administrator.
  • Type slmgr /rearm on the command line and hit enter.
  • Reboot Windows now.
  • Run the activation utility afterwards, enter your product key to activate Windows. (I didn’t have to do this step it was already activated)

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Name of author Dean Lunz (aka Created by: X)
Computer programming nerd, and tech geek.
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