Optiplex 790 - Mojave + Windows

Has anyone tried this configuration? I'm absolutely stuck - have installed Mojave but can't boot from it (not found) on this POS Dell. Searched everywhere but can only get MacOS to boot using Clover on the USB drive. Could only install as GPT with the Mojave installer.

I have no idea where to go - just spent >12 hours and burned through a 64GB USB writing the installer countless times as MBR/gpt->MBR/gpt....and going around in circles with kexts etc.

Happy to pay for someone's time to help me get this setup from start to finish including installation of Windows on the same drive (driver's etc - have a Quadro k600 compatible with Mojave as per the guide which doesn't seem to be working with the kexts but the machine is otherwise stock).

Thanks in advance...

submitted by /u/soswap
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