Valve has announced Steam will be ending support for 32-bit versions of Windows 10 at the turn of the year, citing the fact that only 0.01% of current Steam users are on the operating system. The 64-bit versions of Windows 10 will continue to be supported.
"As of January 1 2026, Steam will stop supporting systems running 32-bit versions of Windows," reads a Valve blogpost. "Windows 10 32-bit is the only 32-bit version that is currently supported by Steam and is only in use on 0.01% of systems reported through the Steam Hardware Survey. Windows 10 64-bit will still be supported and 32-bit games will still run."
