Just got info from WinSuperSite that you can do full clean install Windows 7 of any edition with just installing Windows 7 Upgrade edition. Here's how
- Do clean install of windows 7 and make sure no windows 7 pending updates
- Open regedit with administrator rights
- Navigate to HKLM/Software/Microsoft/Windows/CurrentVersion/Setup/OOBE/ and Change MediaBootInstall from "1" to "0"
- Run command prompt w/ administrator rights then type slmgr /rearm , press enter
