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@@ -39,7 +39,7 @@ It is written in C++ with portability in mind, and we actively maintain builds f
 ## Compatibility
 
 The emulator is capable of running most commercial games at full speed, provided you meet the [necessary hardware requirements](https://yuzu-emu.org/help/quickstart/#hardware-requirements).
-Windows users should note that only Windows 10 or newer is supported.
+Windows users should note that only Windows 10 v1803 or newer is supported because of the use of the [Fastmem technology](https://yuzu-emu.org/entry/yuzu-fastmem/), and a custom build without Fastmem might still work for older systems like Windows 7 but is not supported.
 
 For a full list of games yuzu support, please visit our [Compatibility page](https://yuzu-emu.org/game/)