One of the best advantages of Windows 10 is that it comes with a built-in troubleshooter for practically any issue you can think of. Errors inactivation aren't an exception. Let's see what the troubleshooter can do.

1. Open the Settings app on your phone.
2. Select Updates & Security > Activation from the drop-down menu.
3. The Troubleshoot button will appear if your copy of Windows is not properly activated. Simply press the button.
4. The troubleshooting wizard will now run a scan on your machine to look for any issues. If the solution is found, simply follow the on-screen directions to activate Windows.

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