Watch above as Andre shows you how to Dual Boot Windows and SteamOS from the internal drive on the Steam Deck.
Download Links:
https://rufus.ie/
https://gparted.org/
Windows 10 OS
Windows 10 Drivers
Commands to run inside SteamOS (in a Terminal):
passwd
sudo efibootmgr -c -d /dev/nvme0n1 -p 1 -L “SteamOS” -l \\efi\\boot\\bootx64.efi
sudo efibootmgr –verbose
