Restored High Sierra from Mojave public beta - can't boot Windows 10

[mrochester]

Hi all

I gave the Mojave public beta a quick spin but decided to restore my High Sierra backup. The restore went fine and everything is back to how it was before I tried the pb.

However, I now seem to be unable to boot into my Windows 10 installation. When I restart my Mac and hold the option key I can see both MacOS and Windows 10, but selecting Windows 10 simply boots MacOS.

I've had a look in Disk Utility and I can still see the bootcamp partition with used space.

If I open bootcamp assistant, I get a message that says 'The startup disk cannot be partitioned or restored to a single partition'.

Anyone got any ideas on how to get this going again other than a full reinstall?

 

[chscag]

How about when you select Windows 10 from System Preferences, Startup Disk, and then reboot? Does it still boot to macOS?

 

[mrochester]

How about when you select Windows 10 from System Preferences, Startup Disk, and then reboot? Does it still boot to macOS?

Thank you, I had forgotten about that option in settings.

Yes that does boot into windows 10.