I installed windows 7 and activated it then the motherboard crapped out. didn't change anything else. Nowit wants a defferent product key. I just bought this last month?

Windows Activation thinks you're trying to install Win7 on a second machine using a single license. The server has no way of knowing that your old motherboard died.You'll have to activate by phone. You can probably do it through the automated system, but at worst you'll have to describe things to an actual person.If you have any trouble starting phone activation, you can do it by running the command line: "slui.exe 4".

As we still install it on the same computer, we do not need to replace the product key. Please contect Activation Center. The Microsoft Activation Center can be reached at 888-571-2048 (toll-free) or 716-871-2929.