• July 5, 2022

How to quickly fix d3dcompiler_43.dll error manually?

Many users have problems with the d3dcompiler 43 dll file, especially those who run games on their PC. When starting a game, for example, GTA 5, a message appears stating that the system did not find the gta 5 d3dcompiler 43 dll file and for this reason it cannot be launched. The problem is relevant for Windows 10 x64, 8 and for Windows 7, where this error appears most often. There are logical questions about how to fix the error, where to download this file, how to install it and what to do in such a situation. But initially you need to figure out what kind of file it is.

What is d3dcompiler_43.dll file?

In fact, this file is one of the many Microsoft DirectX libraries, to be precise, the Direct3d HLSL Compiler library. It is she who is used during the launch of many games. In the system, the d3dcompiler_43.dll file can be found in the Windows System32 folder or in Windows SysWOW64 for 64-bit systems. In some cases, this file is located in the directory with the installed game, it depends on the developers of the game software.


It would seem that you need to download the file and drop it into one of these folders, this should solve the problem. The user can take this step, the error message stating that startup is not possible d3dcompiler 43 dll is missing will indeed disappear, but another message will appear. A new error code will appear, as this method of solving the problem is not entirely correct.

Why didn’t the system find d3dcompiler_43.dll?

The problem with DLLs is very common, we are sure that every user has encountered this. In the vast majority of cases, the problem is noticed by users of unlicensed software who downloaded the game on the forums, installed it in violation of the rights of the copyright holder. It is also known that some users received an error message due to the fact that they disabled the automatic updating of the Windows system, use a pirated OS, and do not update the databases of their antivirus system.

The following main causes of the problem can be distinguished:

  • When installing the game, the d3dcompiler_43.dll file is missing from the release. Not all developers add Microsoft DirectX libraries, as this increases the size of the installation file.
  • User chose manual installation and disabled DirectX components.
  • Microsoft DirectX is outdated and hasn’t been updated for a long time.
  • The system contains viruses that are often disguised as DLL libraries, but perform completely different functions.

The reasons why this file is missing from the system can be different. Someone often plays games and launches various projects, so his system has absolutely all the libraries. Someone first installs the game on their computer and faces the problem that almost all DirectX libraries are missing. In any case, you can fix the problem yourself by following the instructions below.

How to fix d3dcompiler_43.dll system error?

There is an easy way to fix the problem, but it does not always work and it is not always convenient to use it. There is a more complicated way, in which you need to download the file to your computer yourself and register it in the system. Each user can choose for himself the option that, in his opinion, is more optimal and simple.

Method 1: automatic installation

Since this file is one of the Microsoft DirectX libraries, you need to install DirectX on your computer. It should be noted that this component is present in every operating system since Windows 7, but not all libraries may be installed there. The user once installed the program and there was an opportunity to install Microsoft DirectX, he chose this function, but in this version there were only those libraries that are needed to run a certain game, an error occurs when launching other components.

The solution is quite simple, download the official Microsoft DirectX from the site and install it. You shouldn’t download it from forums, torrents or third-party sites, there is an official website of the developer, and the program is distributed free of charge. Update your DirectX to the latest version, the problem with starting the game will disappear.


Method 2: manually registering the library

If, for some reason, the above solution to the problem does not work, then the d3dcompiler_43.dll file can be downloaded and installed manually. But it is not enough just to throw it into a folder, so the system will not be able to use it to run games. To manually register the library, you need to do the following:

  1. Download the d3dcompiler_43.dll file to your computer from here (for Windows 10 x64).
  2. Copy it to the Windows System32 or Windows SysWOW64 folder.
  3. Open the Run dialog box by pressing Win + R keys.
  4. Specify command regsvr32 d3dcompiler_43.dll and press Enter.
  5. The file will be registered in the system, the error should disappear.

regsvr32 d3dcompiler_43.dll

If this method of manual registration did not give a result and another error appears when starting the game, then you should return to the first method. Perhaps there are no other libraries in the system, installing them manually, one by one, is not the best way out of the situation.

Problems with Microsoft DirectX components happen quite often, but, as a rule, users who use official and licensed software do not encounter this. This d3dcompiler 43 dll error will not occur if Windows components receive timely updates from the official server. Anyway, if there is an easy way to get rid of the error and start the game.

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