Got a nine laptop with Freedos on it. I tried to install Windos 10 but the laptop always boots into the free dos. I only have a 512GB M.2 SSd.
Also checked in the BIOS boot setting but still boots into the Freedos.
If the stick was created as a BOOT stick and the stick is recognized in the BIOS and set as the first drive - the stick will boot!
The Freedos has nothing to do with it!
So see if all conditions are correct - you don't need more!