I don’t know how the GRUB Menu got changed but GRUB is only supposed to be install on the Manjaro Drive, and not boot to the Windows 10 one.
The way I had it was if I boot boot Computer w/o press F11, Windows 10 boots. If F11 is press while booting then I can boot into Manjaro.
Now this has change. GRUB now shows up when my Booting my Rig. How do I change this back the way it was?