Now you can install Windows on Steam Deck
One of Valve's big promises before the launch of the Steam Deck was that, like any proper PC, you could wipe the operating system and install a different one of your choice, like Windows, for example. Windows drivers were not ready in time for the Steam Deck launch, but that changes today. Valve announced in a blog post on Thursday that the Steam Deck is Windows-ready, with some limitations.
You can now install Windows with the drivers, but dual-booting is not currently possible. “While the Deck is fully capable of dual-booting, the SteamOS installer that provides a dual-boot wizard is not yet ready,” Valve writes. Current drivers are only compatible with Windows 10, because Windows 11 requires a new BIOS currently in development (which provides fTPM support) and will be shipped soon.
Attention: Steam Deck's Bluetooth and Wi-Fi will work, but audio is currently limited to USB-C or Bluetooth output. The speakers and the 3.5mm headphone jack will not produce sound.
In case you do something wrong during installation, there's a page for SteamOS recovery. You can find the page here.