1
If you are experiencing activation errors, what happened to your PC before the problem occurred.
2
Click your Start Button, type cmd then right click Command Prompt and choose 'Run as Administrator'
Run or paste this command and hit Enter:
slmgr.vbs /dlv
Please post a screenshot of the resulting dialog
3
Download the free ShowKeyPlus app from the Microsoft Store.
Please provide a screenshot of that app window and please hide any product key that may appear in the screenshot.