Guide on how to install Windows 11 on your Steam Deck

Requirements

An USB-C hub with either SD-Card, MicroSD or USB disk capability. A Windows PC to create the bootable Windows Install disk.

Downloads

• Download Windows 11 ISO
• Download Rufus (portable is fine)
• Download SteamOS Windows Drivers

Prepare a USB stick

• Run Rufus and select the USB or SD-Card
• Select the Windows 11 ISO for “Boot selection”
• Set GPT as “Partition scheme”
• “Target system” should be “UEFI or BIOS”
• Click Start
• When done you can add the downloaded drivers to disk as well for easy access

Installing windows

• Make sure you have the latest SteamOS. Beta is no longer needed.
• Turn off your Steam Deck
• Hold “Vol-Down” while clicking the power button
• Select the boot disk from the menu
• Enjoy Windows!

For further steps to make the device more useable you can download and run this “Steam Deck Window Installer” in order to get usefull software and configurations.