Most concerning has been TPM 2.0, which caused some confusion when Microsoft's compatibility checker told many users it didn't meet that requirement. This ostensibly means Windows 10, but ever since Microsoft published the system requirements for Windows 11, users have been worried they might be a tad steep. However Valve is keeping the device completely open, and won't stop users from installing Windows on it. Valve will ship Steam Decks with its own Arch-based SteamOS 3.0, using the Proton compatibility layer to run Windows-only games. This includes the requirement for Trusted Platform Module 2.0, or TPM 2.0, which has had some users worried. Valve told PC Gamer that it's making sure Steam Deck meets the requirements for Microsoft's upcoming Windows 11 operating system when both launch later this year. Valve recently said it's working with AMD to make sure it meets that requirement.

Highly anticipated: Valve's upcoming Steam Deck handheld should support Windows, but Windows 11's requirement of the TPM 2.0 security feature threw a lot of people for a loop.

Steamos 3.0 download