Grub2Win is a free and open source Boot Manager for Windows. Using this you can safely boot multiple Windows and Linux systems on both your GPT and MBR disks without any problem. It is released under GNU General Public License version 3.0 (GPLv3). Currently it supports EFI firmware as well as BIOS and automatically generates config files for PhoenixOS, Android, Ubuntu, Debian, Suse, Fedora, Manjaro, Mint, Clover and Windows. You can also do this manually to import the other Linux OS config files.
You can set EFI firmware boot order . You can customize your own background themes and also 9 basic themes are included. It supports Btrfs, ext4, ext3, ext2, NTFS, Fat and Mac hfsplus file systems, GPT and MBR disks, Grub customization and Booting from CD and USB.
You can install Grub2Win on Windows 10, 8, 7 and XP and just need 20 MB disk space to install it. Download Grub2Win from above Download link. Unzip it and run the setup.exe. This will download the most current Grub2Win modules.
Note: You need to disable the “Secure Boot”, if you are using EFI firmware.
Run the Grub2Win program. Here you can set the Grub2 language, graphics preference, Windows boot timeout and grub timeout. You can manager the boot menu by clicking Manage Boot Menu option.
Just save the settings and shut down and restart your computer. Now you will get the Grub2Win menu. Here select your OS to boot.