Delta Force Error Code 126: What Causes It & How to Resolve?

Delta Force is a free-to-play first-person tactical shooter for PC, consoles, and mobile. In this game, players take on the role of military operations with special skills in a combat that has no name and takes place in modern-day settings.

However, some people report that they encounter “error 126 tdatamaster.dll missing” when they play the game. Have you also encountered “error 126 tdatamaster.dll missing” on your PC? If so, you can read this post to get some useful methods to get rid of the error.

What Causes the Delta ForceError Code 126?

After searching the Delta Force error code 126 on the Internet, I found that it usually happens because of missing or corrupt DLL files, specifically the “tdatamaster.dll.”

Typically, DLL files—also known as dynamic link libraries—are necessary for the operation of a variety of Windows apps and games. Error code 126 may appear when games like Delta Force fail to launch if these files are missing.

How to Fix the Delta Force Error Code 126

How to fix the Delta Force error code 126? In this section, I summarize some useful ways to troubleshoot the error.

Method 1. Try Some Basic Tricks

Before you try other advanced methods to fix the Delta Force error code 126, you can try some basic tricks first:

• Update Windows and graphics drivers
• Temporarily disable any antivirus software
• Run Delta Force in compatibility mode

Method 2. Verify and Repair Game Files

Corrupted game files can trigger error code 126 easily. So, you can verify and repair game files to fix the error. Here’s the guide:

For Steam:

1. Launch Steam on your computer.
2. Go to Library and right-click Delta Force.
3. Select Properties.
4. Go to Installed Files and click on Verify integrity of game files.
5. Wait for the process to complete.
6. Launch the game and check if the error is fixed.

For Epic Games:

1. Open the Epic Games Launcher and go to your Library.
2. Click on the three dots next to Delta Force and select Manage.
3. Next, click on Verify to start the process.
4. Once the process is complete, reboot your PC.
5. Then launch the game again and check if the error has been resolved.

Method 3. Install the Media Feature Pack

Some players report that installing the Media Feature Pack this feature helps them fix the issue properly. So, you can also have a try if your operating system is Windows 10/11 N Edition. Here’s the way:

Step 1. Open the Settings window and click Apps. Then follow the steps according to your OS version:

• On Windows 10 N: go to Apps and Features > Optional features > Add a feature
• On Windows 11 N: go to Optional features > View features

Step 2.  Once you are in the Add an optional feature window, look for “Media Feature Pack” and select the checkbox.

Step 3. Then, click Next and Install sequentially.

Step 4. Once the installation process is complete, restart your PC and check if the error is fixed.

Method 4. Install the Unreal Engine Setup

Delta Force is built on Unreal Engine. If the Unreal Engine setup files are not properly installed on your PC, you can run into the Delta Force error code 126 easily. In this case, you can install the Unreal Engine setup again to fix the error. Here’s the way:

Step 1. Open the File Explorer window, and navigate to your game installation directory:

C:\Program Files (x86)\Steam\steamapps\common\Delta Force Hawk Ops

Note: If you’re using the Epic Games Launcher, head over to the respective game installation path.

Step 2. Then, open the Extras folder > Redist folder. Then, locate the file named UE4PrereqSetup_x64.

Step 3. Right-click on the file and select Run as Administrator. In the UAC window, click Yes. Next, follow the on-screen prompts to complete the installation.

Step 4. Once completed, reboot your PC.

Method 5. Update Delta Force

The Delta Force error code 126 may also appear if your Delta Force is outdated. Therefore, you can upgrade the game to get the most recent updates, which can resolve several problems, including error code 126. Here’s how to do that:

For Steam:

1. Launch the Steam client on your PC.
2. Go to the Library tab.
3. Right-click Delta Force and select Properties.
4. Navigate to the Updates tab.
5. Ensure that automatic updates are enabled.
6. If an update is available, it will install automatically.

For Epic Games Launcher:

1. Open the Epic Games Launcher and go to Library.
2. Click the three dots next to Delta Force.
3. Enable Auto Update.
4. If an update is available, it’ll automatically install it.

Method 6. Reinstall Delta Force

If none of the above methods can help you fix the Delta Force error code 126, you can try reinstalling the game. When you reinstall the game, if there is insufficient storage space on your PC, you can use MiniTool Partition Wizard to get more free space.

It provides the Extend Partition feature to help you get more free space from other partitions with ease. Besides, this feature-rich tool can also help you partition hard drive, check disk for errors, format SD card FAT32, change cluster size, convert MBR to GPT, rebuild MBR, and more.

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In Conclusion

This post offers you several effective methods to help you fix the Delta Force error code 126. You can try these methods one by one until you fix the error successfully.