
Once their complete, your Steam Deck will reboot and begin the front end installation of SteamOS which will take around thirty minutes or so. You will get two command windows pop-up, but just let them do their thing. Once you select the drive, it will take you to a Linux based Desktop where you need to double tap (with your finger or rubber stylus) on “Re-Image Steam Deck” to begin the setup process. It should look something like the image above – EFI USB Device (Brand Name). This will show a list of boot devices, but be sure to select your USB Stick that has SteamOS installed on it. This will take you into the Deck’s BIOS, where you will press Right on the Steam Deck’s D-PAD then press “A” to select Boot Manager. Hold down the Volume Up (+) button atop the unit, and press power on like you would booting up the Deck.

Dock your Steam Deck or plug in the USB-C Multiport Adapter, and plug in your USB stick. So now that you know this and want to continue, Shutdown your Steam Deck until the screen goes entirely black. It will not carry over pre-existing installations of titles from Windows to SteamOS. I’ll preface this once again by stating that this process will wipe your Deck.
#STEAM DECK OS CODE#
The base system draws from Debian 8, code named Debian Jessie. There may be a hurdle, but that’s a small caveat that comes with new tech, but I’ll guide you through any supposed mishaps through this step-by-step process. SteamOS is our Linux-based operating system. While the Windows process was kind of complex, the good news is the SteamOS installation process is definitely streamlined, and why wouldn’t it be? It’s made for the unit itself. Regardless, you’re here for a reason, that being of course to re-install SteamOS back onto your deck.

So the advantage of Non-Steam games without third party support attached comes into question. I do know that Windows are already looking into developing a storefront for the Microsoft Store on the Steam Deck which is a major positive, however we may never actually see it.
#STEAM DECK OS WINDOWS 10#
While I tested Windows 10 and Windows 11 on the Steam Deck, I just felt it wasn’t ready for the platform, whether that be a Windows problem or Valve problem remains to be seen. What do you now? How do you revert to SteamOS? Well, I’m going to show you the steps I took to do so. To me, Steam OS is a much bigger deal than the Steam Deck console itself. Additionally, I just really want to see PC gaming be freed from the clutches of Microsoft and Windows in general. So you installed Windows on your Steam Deck, and it’s not the right fit for you. We want to send a message to companies like Bungie and Microsoft that we want to play Destiny 2, Halo Infinite, etc, natively via Steam OS.
