Hello Kurt Martin1,
Welcome to the Microsoft Community!
Understanding that you are experiencing Windows 10 Not Activated Error Code 0x803F7001, we understand your distress!
Error code 0x803F7001 is usually associated with license or activation issues in Windows operating systems. This error code indicates that the system is unable to validate your digital license, which prevents the system from activating or accessing certain features properly. If you want to know more, there is a special analysis document from Microsoft for this purpose:
Fix Windows 10 activation error 0x803F7001 - Microsoft Support
You can try the attempts described in the document above:
If this method does not help the activation, you can try to contact our telephone activation agents to assist you:
Product activation for Windows – online & support telephone numbers - Microsoft Support
We hope that the above will point you in the right direction, wish you success in resolving your issue!
Best Regards ,
Morning | Microsoft Technical Support Community