Rick
Veteran
Go to https://www.windowsupgradeoffer.com
Windows 7 PC purchase information
Date of purchase *Make up any date within last 2 months.
Name of retailer * Just say whatever retailer.
PC Brand *I typed in Carbide 500r
PC Model * I typed in random anything.
That is all it requires, no receipt verification is needed. Anyone can upgrade to Windows 8 Pro for $14.99. It gives you a promo code, and you download and install from there.
source
Founded by a user on techpowerup
edit
How to use your key on a clean install instead of upgrade.
Windows 7 PC purchase information
Date of purchase *Make up any date within last 2 months.
Name of retailer * Just say whatever retailer.
PC Brand *I typed in Carbide 500r
PC Model * I typed in random anything.
That is all it requires, no receipt verification is needed. Anyone can upgrade to Windows 8 Pro for $14.99. It gives you a promo code, and you download and install from there.
source
Founded by a user on techpowerup
edit
How to use your key on a clean install instead of upgrade.
1. Go into the Registry Editor, browse to the following location:
HKEY_LOCAL_MACHINE/Software/Microsoft/Windows/CurrentVersion/Setup/OOBE
2. Change the value of "MediaBootInstall" from "1" to "0"
What this basically does is change the "flag" that tells the Activator HOW you installed your Windows 8 clean install. 1= from boot, 0 = from Win OS (which is what you want for activation to work).
Open up a Command Prompt (make sure you Run as Administrator or you will get an error). Put in the following command:
slmgr /rearm
It should give you a successful confirmation message and tell you to restart your computer.
3. Restart your computer, go to Activation and put in your key that you got from Microsoft and it should now work!
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