What Files or Folders Should I Remove In the macOS EFI Partition to Make the Boot Camp Windows Icon Not Be Double?

[Alvin777]

Hi Apple friends.

I have no idea how the Windows Boot Camp (internal disk) icon became double when you hold Option upon boot up (or use 3rd party app to make the boot manager make bootable volumes appear). I think I used some Windows repair app which may added things in there or used an old version that's meant from Windows 10 Proi, I know macOS boot manager is getting confused coz' my Windows would present two Windows (one is Windows 10 Pro) even though I only installed Windows 11 Pro:

What folders or files should just be in a normal macOS EFI that has Windows Boot Camp. The Windows is on a separate SSD by the way and the filesystem is GPT (though I think for some "magical" reason, Boot Camp can also boot MBR at least for internal drives- Apple's amazing "wizardry" it seems)

I can use an app (any recommendation for that, I can't remember an app I used that can mount hidden macOS the EFI partition) that mounts macOS's hidden EFI to edit things out (I'll back things up for good measure, perhaps rename the current ones as .old or .bak)

Thanks have a great weekend.

 

[joevt]

What Mac model?

An old Mac can boot Windows from an MBR disk or a MBR/GPT hybrid. If Windows doesn't exist on that disk anymore, then you may want to convert it back to GPT only (erase the BIOS boot code in the MBR and restore the protective MBR EFI partition).

If the Mac is a newer model then it will boot Windows using UEFI. In that case, mount the EFI partitions and look for the Window EFI boot loader.

Use dumpvols.sh to gather info of your disks and partitions and check for boot code in the MBR.