Valve is officially ending support for 32-bit Windows operating systems on its Steam platform with a major infrastructure change. With the final update released on December 19, 2025, the Steam client on Windows 10 and Windows 11 platforms has fully transitioned to a 64-bit architecture. The company announced that technical support and update flow for systems with older architectures will completely cease as of January 1, 2026.

Steam will no longer support older Windows versions

According to this decision, 32-bit Windows users can continue to use the current client until the specified date. However, when the calendar shows January 1, 2026, the Steam application on these systems will be deprived of new features, critical security patches, and technical support. Valve also offers no guarantee that the application will function properly on computers with older architectures after this date.

Data from the company’s Steam Hardware Survey reveals that this change affects only a very small portion of the user base. Currently, the platform only supports the 32-bit version of Windows 10, with users in this group making up approximately 0.01% of the total user base. Valve, which has been detailing this migration plan on its support pages for months, has officially announced it with the latest client update.

Users who want seamless access to Steam services and their game libraries need to upgrade their systems to 64-bit Windows 10 or Windows 11 before the first day of the new year. For users whose current hardware does not support 64-bit architecture, maintaining digital assets and security standards on Steam will no longer be possible after this date.