How to resolve the Razer Blade 14” (2021) Windows 10 activation issue

To resolve this issue, perform the following steps: 

Note: In case you encounter errors, click "Retry" in the Windows Update screen as needed. 

1. Make sure your Razer Blade is connected to the Internet. 

2. Start the Windows Update process and reboot as required. For detailed instructions, see the answer below:

   • How to update your Razer Blade's Windows OS.

3. After restarting your blade and Windows Update shows that there are more updates, click "Retry" to check. 

4. If retry does not work, go back to the main Windows Update screen and check for updates again.

    

5.  To verify the system updates, click “View update history”. 

    

6. Make sure the system has KB5003637 installed. Check out the image below for more details.  

   

After all available updates are installed, your Windows 10 should be activated.