Thanks for your feedback, Physician.
If you perform a clean Windows installation using the USB, please follow this procedure:
Open CMD as administrator, type the command SLUI 4 and press the enter key.
From the screen choose your country. A Microsoft support phone number will appear. After dial the number, an automatic system will prompt for an installation ID. This ID is given in your screen. The automatic system will give you an activation ID. Type this number in the Slui screen. This will complete the activation process.
Let me know if that solves the issue.