Overview

• Existing Steam installations on Windows 10 32‑bit will continue to run for the near term but will receive no further updates, including security fixes, and will not be eligible for technical support.
• Future Steam client releases will be 64‑bit only, yet 32‑bit games will still run on supported 64‑bit versions of Windows.
• Steam will continue to support Windows 10 64‑bit and Windows 11 after the cutoff date.
• Valve says core Steam features now rely on system drivers and libraries that are not available on 32‑bit Windows.
• The shift tracks with Microsoft ending support for Windows 10 in October 2025, reinforcing a move to modern Windows platforms.