[SOLVED] How To Fix League Of Legends d3dx9_39.dll Missing, DirectX Error

league of legends

Are you receiving the missing d3dx9_39.dll LOL (league of legends) error, while playing the game then this article is for you, here learn the complete solutions to fix d3dx9_39.dll league of legends error. 

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League of Legends game is known as one of the most played Multi-player Online Battle Arena (MOBA) games in the world. In fact, many people compare this game to World of Warcraft which is also known as one of the most played MMORPG games in the entire world.

There is no comparison between these two games as both the games have their own specifications according to their category and have their own reputation.

League of Legends was released for Windows and Mac OS X on October 27, 2009, and from that time, the reputation is still increasing.

But at the same time, the players are found reporting various errors, bugs, and issues while playing the game.  So today in this article learn to fix the commonly encountered d3dx9_39.dll missing league of legends error.

But first, have a look at the system requirements, to install and run the game without any issues.

System Requirements of League of Legends:

Minimum System Requirements

  • Memory:2 GB
  • Graphics Card: AMD Radeon HD 5670
  • CPU: Intel Pentium 4 2.00GHz
  • League of Legends File Size:8 GB
  • OS: Windows XP (Service Pack 3 ONLY), Windows Vista, Windows 7, Windows 8, or Windows 10

Recommended System Requirements

  • Memory:4 GB
  • Graphics Card: AMD Radeon HD 5670
  • League of Legends CPU: Intel Pentium 4 3.00GHz
  • File Size:12 GB
  • OS: Windows XP SP3, Windows Vista, Windows 7, Windows 8.1, or Windows 10

How To Fix d3dx9_39.dll League of Legends Error

Solution #1: Restart Your PC:

The very first thing you need to do to fix the league of legends d3dx9_39.dll error is to restart the system. And it is found that the league d3dx9_39.dll missing error is fixed after simply restarting the PC/laptop

Solution #2: Install The Latest Version Of Microsoft DirectX:

There is a great chance that if you upgrade and install the latest version of Microsoft DirectX then it will automatically fix the “lol d3dx9_39.dll missing Windows 10” error.

NOTE: Generally, Microsoft releases the updates of DirectX even without updating the letter or version number. So, it is important to make sure that you install the latest updates or release no matter even if your Microsoft DirectX version is technically the same.

The same DirectX installation program works very well with the complete versions of Windows. Installing the new or the latest version will replace the missing DirectX files and the error will be fixed soon.

I hope this works for you to fix d3dx9_39.dll lol error. 

Solution #3: Look For A DirectX Installation Program On Game

If you find that updating the latest DirectX version from Microsoft does not fix the d3dx9_39.dll missing League of Legends Windows 10  error then you should look for DirectX installation on the game. Generally, if a DirectX is used in the game then the software developers will include a copy of DirectX on the installation disc.

However, sometimes, the DirectX version that is included on the disc is better to fix the game program than the latest version which is available online.

Solution #4: Uninstall And Reinstall The Game Again

Maybe, something has happened to the files in the program that used to work with D3dx9_39.dll is missing and reinstalling the League of Legends could do the task.

Most of the time, even after the uninstallation, some of the files are the leftover that could still cause the issues that ultimately show a “D3dx9_39.dll is missing” error message.

For this, you can try a third-party uninstaller tool to remove the program and their related files completely.

Get Revo Uninstaller to remove the program completely

Solution #5: Restore the D3dx9_39.Dll File From The Latest DirectX Package: 

Even after trying all the above troubleshooting steps, the d3dx9_39.dll league of legends does not get fixed then you can try to extract the D3dx9_39.dll file from the DirectX installation package individually.

Bonus Fix:

Firstly, you should check whether your PC specification meets the system requirements of League of Legends. If they do, then you can follow the below-mentioned steps to solve lag issues.

  • First, go to the Nvidia control panel.
  • After that, select the Manage 3D settings option.
  • After then, pick League of Legends executable file from the list.
  • You can now see the different options that are on the drop-down menu.
  • There, you need to search for “Power Management Mode
  • After that in the power management mode, select Prefer Maximum performance.

I hope this works for you to fix League of Legends lagging issue.

However, if you are still facing the low FPS issue or lagging issue in League of Legends game then use the Game Booster, to enhance the low FPS and improve the gaming experience.

  • It boosts the game and you can play the smooth and faster game
  • Optimizes your PC for smoother and responsive gameplay
  • Get the better FPS rate

#Firewall Error League Of Legends: Unable To Connect

If you want then you can try the below-mentioned steps. Even some of them have solved this error by following the steps listed below:

  • Go to” C:\Riot Games\League of Legends\RADS\projects
  • Delete the Folder called “lol_launcher
  • Relaunch League of Legends
  • The patcher will download a new “lol_launcher”

Automatic Solution To Fix d3dx9_39.dll is Missing Error

I hope the above-given solution works for you to fix the d3dx9_39.dll league of legends error. But if the error is not resolved then here it is suggested to run the automatic professional recommended DLL Repair Tool.

This repair tool can totally optimize your PC and prevents DLL errors in the future. It scans your system for all the damaged or corrupt fix DLL errors and fixes it by updating it.

Despite this, it is also capable to fix other computer-related errors like DLL error, application error, BSOD error, stubborn computer errors, protect you from file loss, malware and virus infection, etc.  This not only fixes errors but also improves the Windows PC performance.

Get DLL Repair Tool, to fix all sorts of DLL errors

Final Words: 

Playing games in Windows 10 is so exciting as it offers great graphics features but sometimes the gamers encountered various errors while playing games.

From the above solutions, you may be able to fix  d3dx9_39.dll is missing error and feel free and enjoy playing League of Legends game.

Despite this, If you any queries, comments, suggestions then share with us in the comment section below.

Good Luck!!!

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