How to do a Windows 7 Clean Install with an Upgrade Key

Clean Install and Activate Windows 7 with MediaBootInstall Registry Hack

  1. Initially install Windows with a full version key (you can get this off of the bottom of any windows 7 machine with a sticker), don't activate right away and once you get to windows
  2. After booting up, run Registry Editor (RegEdit).
  3. Navigate to the following registry key:
    1. HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Setup\OOBE
  4. In the right pane, change the value data for MediaBootInstall from 1 to 0.
MediaBootInstall Registry
Rearm Windows
  1. Reboot the computer.
  2. Run the Activate Windows utility (type Activate Windows into Start Search), type in the upgrade product key and activate Windows.