Steam will stop supporting Windows 32‑bit installations on January 1, 2026, a move that, if confirmed and implemented as reported, will leave the vanishingly small number of users still running Windows 10 in its 32‑bit form without client updates, security fixes, or official Steam Support help — and will underline a wider, industry‑level retreat from 32‑bit desktop software support.
Background: what changed (the short version)
Reports published September 18, 2025 say Valve/Steam will end...