MakeUseOf Answers is a Q&A forum. Our community solves your questions about anything related to the Internet and computers. It's free. Ask A QuestionQuestions tagged "product key" All questions Resolved Unresolved Why does Excel start up with a message saying “Locate your product key”? How do I insert registry keys from purchased software into Windows 7? How to validate Windows 7 after failed activation related to ‘Display Images Enabled: Failed”? What do I do after my PC prompts me to activate Windows with a ‘Product Key’? How to register a licence of Microsoft Office in Windows 7 with a misplaced license key?