Windows 10 BCDEdit - How to change {bootmgr} path?

Solution 1:

You can create a separate boot entry in NVRAM for rEFInd and set it as default (first boot choice) if this is the desired result. This should be possible using your UEFI firmware functionality for setting/creating new UEFI boot entry.

If this is not possible using firmware functionality:

I just changed "ApplicationPath" for {bootmgr} object using Visual BCD Editor in Windows 10 - 10240.

You have to map EFI System partition(ESP) to drive Z: for example (use diskpart.exe or mountvol.exe) and later use search button when editing ApplicationPath element to select rEFInd executable on ESP - "\EFI\refind\refind_x64.efi".
("ApplicationDevice" should show Z: or else you will get application exception)

Solution 2:

In Windows 10 you have to quote {bootmgr}. The new line is

bcdedit /set '{bootmgr}' path \EFI\refind\refind_x64.efi