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. 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. 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. 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. So you installed Windows on your Steam Deck, and it’s not the right fit for you.

Steamdeck steamos