Hi, I am Dave, I will help you with this.
1
If you have a bad Internet connection, that may be causing the activation errors from time to time if your PC cannot contact the Microsoft Activation servers, if the troubleshooter re-activates Windows, that is the most likely problem.
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
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