I used the following instructions to enable the hidden administrator account in win 10:-
Opened a command prompt with administrative rights.
Ran the following command in the command prompt window
Net user administrator /active:yes
So, I can now format an original 20GB DMS that I had spare with PhatHack DMS Tools when logged in as the administrator and that works in the phatbox (I still have another original that I used for the hack). So I know the PhatHack DMS Tools work in Windows 10 when logged in as the administrator.
I am still having trouble with the mSATA drive though.
I can format the mSATA drive OK in Linux when connected directly to a PATA port and can copy files to the partitions OK after that in both linux and Windows 10 (there is no PATA port on the PC with the virtual WIN 10 on it though), it just seems to be that the PhatHack DMS Tools running on virtual win 10 have issues with formatting the mSATA drive when connected to the DMS cradle.
Now, if only there was a tool to copy and sign the required files on to the DMS after formatting manually, that would work, wouldn't it?