Windows Clean Install Using Upgrade Media
May
31
Upgrade keys/media sometimes make it difficult for you to perform clean installs of Windows Operating Systems. Clean Installs are often needed when recovering from hardware failure. There are a dozen workarounds, including the perfectly OK method of calling Microsoft during activation, Microsoft will have you run a remote-support tool which is activated with a special key-code provided over the phone.
Here are some of the other workarounds:
1. Modify the installation media (I remember reading this but I can’t find the link)
2. Fix the issue before you install
3. Fix the issue while you’re installing
4. Fix the issue after you install
http://lifehacker.com/you-can-also-just-call-microsoft-they-will-walk-you-t-465264191