Won’t boot SSD after data migration from IDE boot drive using Samsung Magician

[Corc1]

I copied my ide Windows 10 boot drive to a Samsung 850 SDD using Samsung Magician . No errors. If I remove the IDE drive and try to boot the SDD, it appears to try and boot Windows  but I just get a black screen and a mouse pointer.

[Corc1]

Any Windows 10 people here ? I suspect a missing driver for the SDD that wasn’t needed for the IDE.