I do not understand way it is not working on my side. This is the information what I see in my Windows 7 Professional Service Pack 1 On a Assus motherboard Product ID: 00371-OEM-8992671-00282 When I go to d-fault.nl/PIDCheck.aspx I think that I have to use the Activation ID, but that is not working to get a Activation ID ore whatever you must need. So who can help me out here please, and thank you very much