@olivierlambert Thank you for your swift reply!
I think that I just stumbled across this moments after I posted my question, and have been 'playing' with these settings, it looks like I need to have the boot firmware set to bios, to allow the selection of the check box 'Copy host BIOS strings to VM', which causes a new problem as the disk I've exported from Hyper-V needs UEFI to boot
Anyway thanks so much for pointing this out, it gives me a better understanding.