Here is the cumulative fix pack (version 2.1, updated March 2026). This single patch resolves every known issue.
If you want to skip the manual editing, most players today use the "Medal of Honor: Allied Assault Widescreen Fix" plugin. It is a single .dll file you drop into the game folder (Main folder). It automatically:
Resolving Compatibility and Performance Issues for Medal of Honor: Allied Assault on Windows 10 medal of honor allied assault windows 10 fix upd
If you are trying to launch the game via the default launcher menu (the screen where you select "Play," "Options," etc.), it will likely crash.
The Fix: Bypass the launcher entirely.
Medal of Honor: Allied Assault (MOHAA) can run on Windows 10 with a few compatibility tweaks and community patches. This guide explains common problems (crashes, missing CD check, low resolution, controller/mouse issues) and gives step-by-step fixes and resources so the game runs smoothly.
If you have the GOG version, most of this is already baked in — but you’ll still need the OpenGL fix and FPS cap for best results. Steam version? The above works like a charm. Here is the cumulative fix pack (version 2
Now get out there, soldier. Omaha Beach isn’t going to storm itself. 🎖️
— A veteran MOHAA player, still playing in 2025 Now get out there, soldier
Right-click the new MOHAA.exe → Properties → Compatibility tab: