Windows 10 dual boot with UEFI R0B3r7 January 15, 2019 at 2:45 AM efibootmgr works great for me. It is available in the "System Tools" addon.On an Intel NUC I can use from within LibreElec it to alter the OS boot order and also the 'nextboot' feature can do just a 'one time' boot into Windows 10.