Microsoft no longer officially supports Windows 10, so do this if you want to keep using your older PC securely.

Windows 11 users are unaffected; Windows 10 users must run 64-bit or upgrade to keep getting Steam features and fixes. Valve says system drivers and libraries that Steam requires to run its core ...

Valve has officially announced the end of support for 32-bit Windows operating systems, following a recent update that transitions the Steam Client to a native 64-bit architecture to enhance security ...