The errors in the problem are as follows:
"We are unable to activate Windows on this device because you do not have a valid digital license or product key. If you think you have a valid license or key, please select the troubleshooting below. Error code: 0xC004C003.
Microsoft barely provided details about what happened and the cause of the problem, but activatedserverThe exact problem at the end seems to have been fixed.
If you are still experiencing problems, just follow the steps below to fix the activation error:
Open the Settings page from the Start menu.
In the Settings app, navigate to Updates & Security > Activate and click the Troubleshoot option.
Windows will connect to the server, re-verify the license, and the Windows 10 device will be reactivated. If it doesn't work, you need to consider contacting Microsoft Customer Service for a more effective fix.
Of course, even if you don't manually click on the troubleshooting link, everything will return to normal within a few hours.