Because the system settings are not right Microsoft prevents some users from upgrading to Windows 10 May 2020 update

We’ve seen a series of problems with Windows 10 May 2020 updates, including login issues, storage space issues, and OneDrive issues. But there are also some people who have problems with the installation. Someone couldn’t get an update because “the device wasn’t fully ready.” Now reports say some users see a message telling them that “this pc can’t be upgraded to Windows 10.” In the error message, Microsoft tells affected users that “your PC settings do not support this version of Windows 10.”

The problem appears to affect those who are trying to upgrade from Windows 10 to 1903 or 1909 to 2004, and it’s unclear what settings are preventing execution of the upgrade. Just like the previous “Your device isn’t fully ready” error, it’s pretty vague and unhelpful.

Because the system settings are not right Microsoft prevents some users from upgrading to Windows 10 May 2020 update

The full text of the error message reads:

This PC cannot be upgraded to Windows 10.

Your PC settings are not yet supported on this version of Windows 10. Microsoft is working to support your settings as quickly as possible and no action is required at this time. When these settings are supported, WIndows Update will automatically provide this version of Windows 10.

There is no clear fix yet, but as Techdows points out, they share several potential workarounds.

Update hardware drivers

Disable core isolation by accessing Settings, Windows Security, Open Security Center, Device Security, Core Isolation, and Core Isolation.

There are also users surprised to find that the first network can be successfully upgraded.