dual boot your steam deck with windows

i fix my issue with steps below, no reinstallation needed.

Start with Steam Deck off.

Hold Volume + button and power.

Choose “Boot from file”.

Select esp/efi/steamos/steamcl.efi.

Wait until SteamOS boots (there will be a blank screen for some time, but Steam should start after that).

Go to desktop mode.

Open Konsole.

cd SteamDeck_rEFInd chmod +x SteamDeck_rEFInd_install.sh ./SteamDeck_rEFInd_install.sh