If you’ve recently tried launching the Epic Games Launcher and received an error related to d3dcompiler_43.dll, don’t worry—you’re not alone, and you’re definitely not stuck. This error is relatively common and can be fixed with just a few easy steps.
In this guide, I’ll walk you through exactly how to fix the d3dcompiler_43.dll is missing or not found error by:
- Removing corrupted versions of the file,
- Downloading clean versions safely,
- And placing them in the correct folders.

We’ll also touch on installing required components like DirectX and Visual C++ Redistributables—just to ensure everything runs smoothly.
So far, so good? Let’s move to the next step.
🧠 What is d3dcompiler_43.dll and Why Does the Error Appear?
The d3dcompiler_43.dll file is part of Microsoft’s DirectX runtime package. It’s essential for rendering 3D graphics in many games and applications—including the Epic Games Launcher.
If this file is missing or corrupted, you may get an error like:
“The program can’t start because d3dcompiler_43.dll is missing from your computer.”
This error can appear due to:
- Corrupted DLL files
- Missing DirectX components
- Incomplete game or launcher installations
- Registry issues or a faulty Windows update
✅ Step 1: Delete the Corrupted DLL Files (System32 and SysWOW64)
Let’s begin by removing any corrupted versions of the DLL file from your system.
🔍 Steps:
- Open File Explorer and go to This PC.
- Navigate to the drive where your Windows OS is installed (usually
C:\). - Open the Windows folder.
- Type
sto quickly scroll and open the System32 folder. - In the top-right search bar, search for:
d3dcompiler_43.dll - If found, right-click on the file and press Shift + Delete to permanently delete it. Confirm if prompted.
- Now go back to the Windows folder and open SysWOW64.
- Search again for
d3dcompiler_43.dll, and delete it permanently using Shift + Delete.
⚠️ We’re deleting these files because they may be corrupted or outdated.
🌐 Step 2: Download the Correct DLL Versions (32-bit and 64-bit)
Next, we’ll download fresh and verified versions of the DLL file from a trusted source.
💡 Tip: Always use trusted websites like DLL-Files.com to avoid malware-infected files.
🖥️ Here’s how to do it:
- Visit https://www.dll-files.com/d3dcompiler_43.dll.html
- Scroll to the Download section.
- Download both:
- The 32-bit version
- The 64-bit version
- Once downloaded, extract the
.ziparchives using Windows or 7-Zip.
🗂️ Step 3: Place the DLL Files in the Correct System Folders
Now that you have clean versions of the DLL file, we’ll paste them into the system folders where they belong.
💾 For the 32-bit Version:
- Copy the 32-bit
d3dcompiler_43.dllfile. - Go to:
C:\Windows\System32 - Paste the file (
Ctrl + V) and click Continue if prompted by Windows security.
💾 For the 64-bit Version:
- Copy the 64-bit DLL file.
- Navigate to:
C:\Windows\SysWOW64 - Paste the file into this folder as well.
That’s it! Your fresh DLL files are now in place.
🧰 Step 4: Ensure Visual C++ Redistributables and DirectX Are Installed
Sometimes, the missing DLL issue is a symptom of a larger problem: incomplete runtime environments.
Make sure the following are installed:
🔗 Microsoft Visual C++ Redistributables:
👉 Download the Latest Supported Visual C++ Redistributables
Download and install both:
vc_redist.x64.exevc_redist.x86.exe
🔗 DirectX End-User Runtime Web Installer:
👉 Download DirectX Runtime Installer
Install this package to ensure all DirectX components are up to date, including the one related to d3dcompiler_43.dll.
💡 After installing, restart your PC to apply changes.
❓ Frequently Asked Questions
Q1: What if the DLL error still appears?
A: Double-check that you pasted the correct version (32-bit into System32, 64-bit into SysWOW64). Also ensure your system isn’t blocking the file with antivirus or missing Visual C++ Redistributables.
Q2: Is it safe to download DLLs from DLL-Files.com?
A: Yes, it’s one of the most trusted DLL libraries. However, always scan downloaded files with antivirus for peace of mind.
Q3: Can I just reinstall Epic Games Launcher?
A: You can, but if the system DLL is missing, reinstalling the launcher won’t always fix the issue. Follow this full guide for best results.
🎯 Final Words
So far, we’ve covered everything needed to fix the d3dcompiler_43.dll is missing error for the Epic Games Launcher on Windows. This solution works for most users, and once completed, you should be able to launch the Epic Games client without seeing that annoying popup.
Just remember:
- Remove the corrupted DLL
- Replace it with a clean copy
- Ensure Visual C++ and DirectX are installed
Let us know in the comments if this worked for you—or if you faced any hiccups along the way. We’re here to help!
Until next time, this is Emanuel from Tech Based In, wishing you smooth launches and bug-free gaming! 🎮
🔗 Useful Downloads
- 🔧 Download d3dcompiler_43.dll – DLL-Files
- 📦 Microsoft Visual C++ Redistributables
- 🎮 DirectX Runtime Installer
- 🕹️ Epic Games Launcher
📌 Tags & Hashtags
Tags: epic games error fix, d3dcompiler_43.dll missing, dll error solution, epic launcher not starting, fix missing dll windows 10, directx dll error, system32 fix, syswow64 dll issue
Hashtags:
#DLLFix #EpicGamesError #d3dcompiler43 #DirectXError #Windows10Fix #TechBasedIn #GamingPC #LauncherFix #SysWOW64 #System32DLL
⚠️ Disclaimer:
This guide is intended for educational purposes. Always download files from trusted sources. Modifying system files can affect your OS—proceed carefully. We do not support pirated games or third-party launchers that may cause DLL issues.