Microsoft ends support for Windows 10 on Oct. 14, and it initially wanted to charge you $30 to keep the OS for another year.
Windows 10 support is ending soon, but Valve does not plan to drop the outgoing operating system yet. However, the situation ...
The change to the Steam client shouldn't have any effects on game availability or compatibility. Any older 32-bit games that you can currently run in 64-bit versions of Windows will continue to work ...