Windows – How to re-activate Windows 7 after Windows has decided it is no longer genuine after an update

windows 7windows-activation

Windows just recently decided that it was no longer genuine and it keeps telling me that I need to re-activate. However, the dialog that pops up asking me if I want to make it genuine seems to crash or give a fatal error: 0xD000006. I've looked in Properties page for My Computer in the Windows Activation section and it simply says:

Status Not Available
Product ID Not Available

And there is no option to activate. I'd prefer to not have to reinstall Windows 7, so any leads would be greatly appreciated.

I've tried re-activating using slui.exe as suggested in the answers below, but when I do that I get the following error dialog.

enter image description here

I'm not quite sure what to do now and the thought of being on hold with Microsoft is not terribly appealing to me. Thanks.

Best Answer

Does the Activate Windows wizard (slui.exe) in the Control Panel work?

activate

successful

slui.exe has various options for activating a Windows license. You can try re-entering your product key by running slui.exe 3.

product key

Or you can run slui.exe 4 to activate by phone.

by phone

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