Gaming Updated: 2025-12-12

Fix d3d12.dll Missing Error in Hogwarts Legacy

Can't play Hogwarts Legacy due to d3d12.dll error? This guide provides specific solutions for Avalanche Software's 2023 release.

By System Admin Team
Verified 2025-12-16

Why Hogwarts Legacy Needs d3d12.dll

Seeing Fix d3d12.dll Missing Error in Hogwarts Legacy? This guide will help you resolve it.

Solution 1: Install the Official Runtime Package (Recommended)

This solution fixes d3d12.dll errors for 90%+ of Hogwarts Legacy players.

### Download Links (Official Microsoft)

- 64-bit: Windows System Component x64 - 32-bit: Windows System Component x86

### Installation Steps

Step 1: Download BOTH the x64 and x86 versions (yes, even on 64-bit Windows)

Step 2: Close Hogwarts Legacy and Steam/Epic/GOG completely

Step 3: Run the x64 installer first, then the x86 installer

Step 4: Restart your computer (important!)

Step 5: Launch Hogwarts Legacy

Why both versions? Hogwarts Legacy may include both 32-bit and 64-bit components. Installing both ensures complete compatibility.

Solution 2: Verify Game Files

If the runtime installation didn't help, your game files may be corrupted.

### For Steam: 1. Open Steam �?Library 2. Right-click Hogwarts Legacy �?Properties 3. Go to Installed Files tab 4. Click "Verify integrity of game files" 5. Wait for verification (5-30 minutes depending on game size) 6. Restart Steam and try launching

### For Epic Games: 1. Open Epic Games Launcher �?Library 2. Click the three dots (�? next to Hogwarts Legacy 3. Select Manage �?Verify 4. Wait for the process to complete

### For GOG Galaxy: 1. Open GOG Galaxy �?Select Hogwarts Legacy 2. Click Settings icon (⚙️) 3. Select Manage Installation �?Verify / Repair

Hogwarts Legacy-Specific Fixes

Hogwarts Legacy has some known issues that can cause DLL errors:

### Known Issues 1. Shader compilation stuttering (wait for cache to build) 2. Memory leak after long sessions (restart game periodically) 3. Controller not detected (reconnect or use Steam Input)

### Performance Tips 1. Enable DLSS/FSR for significant performance boost 2. Set Ray Tracing to Off or Low 3. Reduce Draw Distance for better FPS 4. Disable motion blur for clearer visuals

### Community Resources For additional help: r/HarryPotterGame, Steam Community, Nexus Mods

Related DLL Errors

If you're seeing d3d12.dll errors, you might also encounter issues with these related files:

- d3d11.dll: Part of the same runtime package - d3d10.dll: Part of the same runtime package - dxgi.dll: Part of the same runtime package

The solution above (installing Windows System Component) will fix ALL of these errors at once.

Preventing Future DLL Errors

### Before Installing New Games 1. Install all Visual C++ Redistributable versions (2008, 2010, 2012, 2013, 2015-2022) 2. Install DirectX End-User Runtime 3. Keep GPU drivers updated

### Antivirus Configuration Add your games folder to antivirus exceptions: - C:\Program Files (x86)\Steam\steamapps\common\ - C:\Program Files\Epic Games\ - C:\GOG Games\

### After Windows Updates Run sfc /scannow in an admin command prompt after major Windows updates to repair any corrupted system files.

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