Valve will discontinue support for 32-bit versions of the Windows operating system in its Steam client starting January 1, 2026. The decision is based on the minimal user base of 32-bit systems, which has dropped to 0.01% according to the August 2025 Steam Hardware Survey. After the deadline, users on 32-bit systems will no longer receive updates or technical support, and while the client may still operate temporarily, its performance will decline due to lack of updates. Users with 64-bit versions of Windows will still be able to access their legacy 32-bit games. Valve encourages users to upgrade to a 64-bit version of Windows for continued updates and security.