Site menu:

Windows 8

How to do a clean Install with the Windows 8 Pro Upgrade


Windows 8

You'll have to do a little work if you want to install the Windows 8 Upgrade version on a clean hard disk (i.e. with no prior OS installed).

Obviously you can't run the Windows Upgrade Assistant on a blank HD, so you'll need to have the installation saved on a bootable USB stick or burned to DVD.

After you have installed Windows 8, press the WinKey on your keyboard together with the W key. This will open Search Settings. Type Activate and click Activate Windows from the search results (Figure). Enter the product key you received in the Activate Windows screen. You'll receive a message that the product key didn't work.

Activate Windows 8

So lets fix this:

  • Press the WinKey on your keyboard together with Q. This will open the Search Apps. Type regedit and click regedit from the search results
  • In the registry editor navigate to HKEY_LOCAL_MACHINE/Software/Microsoft/Windows/CurrentVersion/Setup/OOBE/
  • Double-click the MediaBootInstall value and change the value from 1 to 0 (Figure)
  • Close the registry editor
  • Press the WinKey on your keyboard together with Q and this time enter cmd in the search box. Right-click the listed Command Prompt from the search results, and click Run as administrator at the bottom of the screen
  • Type slmgr /rearm on the command line and hit enter. If all goes well, you'll receive a message that the command was successful (Figure)
  • Reboot Windows

After Windows restarts, restart the activation process. This time it should complete successfully.

Windows 8 Activated

Enjoy your new OS. If you have any questions, you can post these on our Forum.