If you are trying to update to Windows 10, version 2004, you might encounter an update compatibility hold and receive the message, "This PC can't upgrade to Windows 10. Your PC isn't supported yet on this version of Windows 10. No action is needed. Windows Update will offer this version of Windows 10 automatically once the issue has been resolved."
An issue has been found with certain Windows 10 devices and Windows 10, version 2004. After installing Windows 10, version 2004 on an affected device, you might experience Windows not responding, a stop error, unexpected restart or shutdown.
To safeguard your update experience, we have applied a compatibility hold on these devices from installing or being offered Windows 10, version 2004.
We are working on a resolution and will provide an update in an upcoming release.
Note We recommend that you do not attempt to manually update using the Update now button or the Media Creation Tool until this issue has been resolved.