What Bootloader Does Manjaro Use?
Contents in Order to Load the Operating System, a Linux-Capable Boot Loader Such as Grub, rEFInd or Syslinux Needs to Be Installed to the Master Boot Record...
In order to load the operating system, a Linux-capable boot loader such as GRUB, rEFInd or Syslinux needs to be installed to the Master Boot Record (MBR) or the GUID Partition Table (GPT) of the media containing the Operating System. Installations created using Manjaro ISO defaults to GRUB.
Does Manjaro use UEFI?
Tip: Since Manjaro-0.8. 9, UEFI support is also provided in the Graphical Installer, so one can simply try the Graphical installer and skip the instructions given below for the CLI installer.
Must Read
Does Manjaro support dual boot?
Installation type
Manjaro supports both GPT and DOS partitioning and it is very easy to start the Manjaro installer in EFI mode on a system supporting it. To ensure a successful dual-boot on Windows 7 systems you must disable EFI in the firmware.