Getting Medal of Honor: Allied Assault to work on Windows 10 is a test of patience and a testament to the dedication of its still-thriving community. While modern security features and graphics drivers have created significant obstacles, there are more than enough workarounds and fixes to get you back on the beaches of Normandy or sneaking through the streets of Neustadt.
By default, MOHAA only supports 4:3 aspect ratio resolutions (like 1024x768). Running this on a modern 1080p, 1440p, or 4K monitor stretches the image horizontally, ruining the visuals.
Some overlay software (like from Discord or NVIDIA) can cause issues. Try disabling them while playing.
By default, MOHAA doesn't support modern 16:9 or 4K resolutions. If you try to force them through the in-game menu, it may crash. medal of honor allied assault windows 10 fix upd
Medal of Honor Allied Assault Windows 10 Fix UPD: Get Back to the Frontlines (2026 Guide)
Ensure your Windows sound output is set to 44.1 kHz to prevent distortion. Graphics Driver Fixes
Medal of Honor: Allied Assault (MOHAA) on Windows 10 can be a challenge due to outdated DRM (SafeDisc) and resolution conflicts. However, the community has developed several reliable fixes as of 2026 to get this classic FPS back in action. Primary Fixes for Windows 10 The "opengl32.dll" Fix Getting Medal of Honor: Allied Assault to work
Below are the highly targeted steps to successfully launch and run the game. Step 1: Solve the Disc DRM Block (For CD Owners)
The original Medal of Honor: Allied Assault is a masterpiece that deserves to be played for decades to come. By using OpenMoHAA and the tips in this guide, you're not just fixing a game—you're preserving a piece of history. With just a few minutes of work, the beaches of Normandy await your arrival once more.
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. Running this on a modern 1080p, 1440p, or
Before we apply the fix, let’s diagnose the problem. MOHAA was built on an idiosyncratic version of the id Tech 3 engine (the same engine as Quake III Arena ). Windows 10 introduces several incompatibilities:
Launch the game. The wrapper will intercept the outdated OpenGL calls and translate them into a format your modern GPU understands. 2. Bypass SafeDisc DRM (Disc-Based Versions Only)
If you're using original discs, you have a couple of options.
Use the Unofficial Mega Patch v2.0 to add support for modern resolutions, ultra details, and higher FOV (Field of View).