While activating Windows is typically a seamless process, occasionally one runs into a snag. The 0x8007000D Windows activation error can cause significant problems if one does not know how to resolve the issue, including being unable to download and install updates, wallpaper removal, and annoying activation notifications. This activation error can likely be caused by many things, however, I believe this one to be the result of not entering the Windows 7 product key and without activating Windows within the 30 day activation window.
I first came across this issue when I received a call that a user's background had been changed to a black one and there was a message in the bottom right corner stating, “This copy of Windows is not genuine.” So naturally, the first thing I do is attempt to activate Windows. I chose to activate Windows over the Internet and received the following error message:
“A problem occurred when Windows tried to activate. Error Code 0x8007000D”
