Installing OpenCore on a legacy system
At the moment there is no official support for MBR/Legacy based Windows installs, there are plans though unlikely to see anything anytime soon: Add MBR loading tool to OpenCore
Currently, there are 2 workarounds:
- Convert Windows into a GPT based drive(this means you will have to boot with OpenCore each time)
- Chainload rEFInd which does have support
For the latter:
- Setup rEFInd
- Add BlessOverride path for rEFInd(
\EFI\refind\refind_x64.efi
) - Boot OpenCore
- Chain-load rEFInd
- Select Windows