Running WSA on Windows 10 with WSAPatch
The Windows 10 Problem
WSA was built for Windows 11. On Windows 10 (build 19041+) it crashes on launch because WsaClient.exe calls APIs that don't exist on the older OS. The error is a stack buffer overrun in the client binary.
What WSAPatch Does
WSAPatch binary-patches WsaClient.exe to replace the unsupported calls with compatible equivalents. After patching, the subsystem starts normally on Windows 10 and behaves like its Windows 11 counterpart.
Requirements on Windows 10
- Windows 10 build 19041 or later
- Virtualization enabled (VT-x / AMD-V)
- Administrator rights for the patch and feature enablement
- About 10 GB free disk for the subsystem + GApps
Known Caveats
Some features (like certain graphics paths) are less polished on Windows 10. For the smoothest experience Windows 11 22H2+ is still recommended, but Windows 10 users are fully supported via WSAPatch.
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