Valve's portable PC gaming handheld has proved to be a roaring success, but the Steam Deck has a notable limitation. It's totally reliant on its Linux-based SteamOS operating system, which excludes specific titles from true compatibility, primarily due to reliance on anti-cheat hooks designed for Windows. Dual booting is still not an official option, but that doesn't mean you can't boot into Windows on your Steam Deck.
Installing Windows on an external storage device is easier than you might think. All you need is one of the best SD cards for Steam Deck and some patience. I've been tinkering with my 256GB model for a while, and my Samsung EVO Select card has proved more than capable of running my copy of Windows 11, so I can show you exactly how to set everything up.
