Error code: 0xC004F034
Error description: The Software Licensing Service reported that license could not be found or was invalid.
The error happens despite the fact that the system is connected to Internet, and the original Windows which you’re upgraded from is legally purchased and genuine.
The cause of the activation failure error is most likely due to heavy load or network congestion on Microsoft activation server.
Resolution to make Windows 10 activates itself is simple. Leave the system running and remains online for a few moments, sometimes may be as long as a few days, and it should become activated automatically.
If the Windows 10 still does not become permanently activated, you can try the following tricks to force activate Windows 10:
Go to Settings -> Update & Security -> Activation , then click or tap of Activate button repetitively. Some users reported that it requires hundreds of times.
Alternatively, open a Command Prompt with administrator permission, and run the following command: