I bought the Windows 8 Pro $15 upgrade when it came out. I was emailed the product key and it worked. Windows said it was activated and whatnot. Now, when I go to the activation center it says that Windows isn't activated. When I attempt to reactivate, it says the key is working, but when I click next I get this:
What is going on? Did someone steal my product key or something? I don't think anyone knows my email password. I haven't told anyone it and it is really difficult to guess. (Used random word generator plus numbers.)
EDIT: For the record, I have not actually exceeded the unlock limit. I have only used the key once.