Grub2Win

Grub2Win is a robust, free, and open-source Windows application that simplifies dual-booting. It allows you to safely configure the Grub bootloader directly from Windows, eliminating the need for complex Linux commands. All modules are SSL signed for security. The software automatically generates boot configurations for a wide range of systems including Windows, Ubuntu, Fedora, Android-x86, and many others. You can even import config files for other distributions like Chrome OS. Everything installs neatly into a small 30 MB directory on your C: drive, and you can personalize the boot screen with your own JPG wallpaper files.