I have recently restored my Windows 8 laptop. Ever since I have been asked to activate Windows, but upon entering the key am given the prompt "This Key didn't work. Please check it and try again, or try a different key."
I have attempted multiple times to contact customer service, but they have been absolutely no help. I have tried every other method of activation I can think of, including over the phone and through the command prompt, but to no avail.
What do I do?