Medal-hook64.dll
Press Windows Key + R , type %localappdata% , and press Enter. Delete the folder if it is still there. Restart your computer.
Run the installer again from the Medal Platform to recreate clean libraries. Step 3: Configure Antivirus Whitelisting
: Like other recording tools (such as OBS), it injects this DLL into the game window to capture gameplay data without needing to restart the game or the recording app.
If a standard uninstall doesn't work, Medal support recommends a "purge" to ensure all instances of the DLL are removed:
is a core Dynamic Link Library (DLL) file associated with Medal.tv , a popular game recording and clipping software. This file is specifically designed for 64-bit Windows operating systems and serves as a "hook" that allows the Medal application to interact directly with your game's process. What is the Purpose of medal-hook64.dll? medal-hook64.dll
This is fragile. If the game updates its DirectX implementation, or if another overlay (like Discord or NVIDIA GeForce Experience) tries to hook the same function at the same time, the "hook chain" can break. The game calls Present , jumps to Medal, crashes, and never returns to the game engine. Result: Access Violation .
Try disabling the Medal Overlay in the app settings or changing the Capture Mode to "Advanced" or "Basic" within the Medal.tv Support guidelines.
Press Ctrl + R on your keyboard while the Medal window is active to force the application to reload and check for missing core files. 2. Check Your Antivirus Quarantine
This error usually appears as a pop-up message when you try to launch Medal or a game that Medal is monitoring. Common error messages include: Press Windows Key + R , type %localappdata%
: Measuring CPU/GPU cycles used by the hook versus full desktop capture.
When you launch a video game while Medal.tv is running in the background, the application needs a way to capture the game's visual and audio output. It accomplishes this through a process called .
It captures the video output directly from the game's rendering pipeline (often DirectX or OpenGL) for high-efficiency recording.
: It is a legitimate, safe file signed by Medal and is not considered malware. Run the installer again from the Medal Platform
Locate the or UI Hardware Acceleration toggles.
medal-hook64.dll uses a technique often called or Trampoline Hooking . It locates the specific function in the game's memory responsible for this action (e.g., Present in DirectX). It then overwrites the beginning of that function with a "JMP" instruction that redirects the flow of execution to the code inside medal-hook64.dll .
For AMD: Open and install the latest driver. For Intel: Use the Intel Driver & Support Assistant . 5. Install Microsoft Visual C++ Redistributables
A legitimate file from Medal B.V. will be digitally signed. To check this: