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Windows 7 Activate or change product key

If you need to re-activate your Windows 7 or change the product key on a cloned drive use one of the following methods:-

1. Go into System Properties Screen
2. Click Change Product key
3. Type the Product Key
4. Click on Next (activate your windows 7)


1. Start Command screen by typing cmd press enter
2. Type ==> slmgr.vbs -ipk [product key here]
3. now type ==> slmgr.vbs -ato