How to fix d3dx_39.dll file missing error in Windows 10

What is ‘d3dx_39.dll file missing’ error in Windows 10?

If you are facing ‘d3dx_39.dll file missing’ error while trying to open certain applications like ‘League of Legends’, ‘Witcher 1 & 2’, ‘Warhammer 40,000’, and ‘Prince of Persia’ application/game in Windows 10 computer, then you are in right place for the solution. Here, you will be guided with easy steps/methods to resolve the DLL error. Let’s starts the discussion.

‘d3dx_39.dll’ file: d3dx_39.dll is important DLL (Dynamic Link Library) file associated with Microsoft DirectX software which is the program supporting your PC games and hardware like Graphics card (GPU). It means if you want to play game or run the application with DirectX software functionality. However, this application is included in latest Windows versions by default and the DirectX package that is needed will not be installed via Windows update.

As mentioned, d3dx_39.dll file is part of DirectX Software or DirectX Runtime June 2010 Redistributable Package. This is actually an operational update that a lot of applications and games use. However, several users reported that they faced ‘d3dx_39.dll file missing’ error while they tried to run certain application/game in their Windows 10 computer. This error states that the program can’t start because d3dx_39.dll file is missing from your computer.

The possible reason behind this issue can be malware or viruses attack in your computer. Some malware is capable of infecting your computer deeply and deleting some legitimate DLL files like d3dx_39.dll file in your computer. In such case, you should at first try to find and remove all threats or malware in computer by running system scan with some powerful antivirus software. Or you can try ‘PC Repair Tool’ offers you to find and remove all threats and fix PC issues as well.

Another possible reason behind this issue can be the interference of some third-party applications installed in your computer. You can fix the issue by just finding and uninstalling the problematic software. Also, you can update DirectX software to latest update version in order to fix the issue. This problem can also be occurred due to outdated/corrupted graphics card driver, and graphics card driver update is necessary in this case. Let’s go for the solution.

How to fix d3dx_39.dll file missing error in Windows 10?

Method 1: Fix ‘d3dx_39.dll file is missing’ error with ‘PC Repair Tool’

‘PC Repair Tool’ is easy & quick way to find and fix DLL errors, BSOD errors, EXE errors, problems with programs/applications, malware or viruses issues, system files or registry issues, and other system issues with just few clicks. You can get this tool through button/link below.

Method 2: Restart your Windows computer

Sometimes, this issue can be occurred due to some temporary issue in computer. You can just restart your computer in order to clear your RAM, give your system a clean slate and fresh start in order fix temporary issue.

Method 2: Install latest DirectX software version

One possible way to fix the issue is to update DirectX software to latest version or install latest DirectX version in your computer.

Step 1: Open your browser and visit ‘Microsoft Official DirectX End-User Runtime Web Installer Download Page’ (Official) page and download the latest version of DirectX software from there

Step 2: Once downloaded, double-click on downloaded DirectX setup file and follow on-screen instructions to finish installation. Once done, restart your computer and retry running the program that was causing DLL error and check if the error is resolved.

Method 3: Download d3dx_39.dll file and place it in correct folder in Windows 10

d3dx_39.dll file missing issue can be resolved by downloading d3dx_39.dll file from internet and then place the file in correct folder location in computer.

Step 1: Open your browser and visit ‘DLL-Files.com’ official page. Search for and download d3dx_39.dll for your Windows computer

Step 2: Now, open ‘File Explorer’ and navigate to ‘\Windows\SysWOW64\’ path in main drive ‘C:’ drive of computer hard drive, paste the downloaded DLL file there.

Step 3: Or you can also install this missing DLL file from ‘DLL-Files.com’ page in correct folder location by just taping ‘Install’ button after downloading the file. But installing this file from site may require paying certain money to license which comes with full support.

Step 4: Once installed, restart your game/app and check if the error is resolved.

Method 4: Reinstall the problematic Software/game

One possible way to fix the issue is to uninstall the app/game that is triggering DLL missing error, and then reinstall it.

Step 1: Open ‘Control Panel’ in Windows 10 via Windows Search and go to ‘Uninstall a Program > Programs & Features’

Step 2: Find and select the problematic program in the list of programs, and click ‘Uninstall’ option. Follow on-screen instructions to finish uninstall

Step 3: Once done, download and install the program/game again and re-launch it and check if error is resolved.

Method 5: Update graphics card driver in Windows 10

Updating graphics card driver to latest available version can resolve the error. Let’s try.

Step 1: Open ‘Device Manager’ via Windows Search and expand ‘Display Adapters’ category

Step 2: Right-click on your graphics card and select ‘Update Driver’. Follow on-screen instructions to finish update. Restart your computer once finished

Download or reinstall graphics card driver update in Windows 10 [Automatically]

You can also try to update all Windows drivers and graphics card driver with ‘Automatic Driver Update Tool’. You can get this tool through button/link below.

Method 6: Update Windows 10

Updating Windows 10 OS to latest OS version can resolve any issue in Windows computer and improve performances. Let’s try.

Step 1: Open ‘Settings’ App in Windows 10 and go to ‘Update & Security > Windows Update’ and click ‘Check for updates’ button

Step 2: Download and install all the available and pending updates in computer and once done, restart your computer in order to see the changes and check if the error is resolved.

Method 7: Repair .Net Framework Installation

Corrupted .Net Framework installation could be reason behind this error. You can repair it in order to fix the issue.

Step 1: Open your browser and visit Microsoft Official website and download Microsoft .Net Framework tool from there

Step 2: Once downloaded, launch it and let it complete the repair process

Step 3: Once done, restart your computer and check if error is resolved.

Conclusion

I am sure this post helped you on How to fix d3dx_39.dll file missing error in Windows 10 with several easy steps/methods. You can read & follow our instructions to do so. That’s all. For any suggestions or queries, please write on comment box below.