Periodically during usage, I will receive a Windows Activation Technologies notification that says my copy of Windows is not genuine. I purchased it retail off of Amazon and it worked from around December 2011 to December 2012. From the beginning of 2013 onward, I've gotten the notification Code 0x8004fe21 sits down towards the bottom left corner. It always recommends an update that I have tried to install multiple times. It always fails. The error information code is 0x80096001. I checked the activation status; activated. I am always able to ignore it by closing the window and, other than being unable to update Windows, I do not perceive any other issues. It is simply a persistent annoyance.
Any ideas on how I might resolve this?