Error when using product key for Windows 10
Error when using product key for Windows 10
Interesting...patches from activation patchers usually last between three to six months before Windows notices. Reach out to Microsoft for assistance.
Conrad Elektro Fachmarkt – if it catches your eye. (We’re in Germany)
Contact MS support immediately. If he provided a valid proof of purchase, they will resolve the issue. Ensure he didn’t attempt to activate it on another device. Has he changed any hardware?
You're checking if the phone number is correct. Microsoft is a well-established firm, so it's likely they have someone ready to assist with their tech support line.