Solving the d3dcompiler_43.dll missing error

Have you encountered a sudden error where a game or program refuses to start, and the system reports that the d3dcompiler_43.dll file cannot be found on your computer? You are not alone. This problem is quite common, especially after reinstalling Windows or when trying to run older games. The good news is that this is not a hardware failure and can be resolved fairly quickly.

The d3dcompiler_43.dll file is part of the Microsoft DirectX package, a set of technologies responsible for graphics and multimedia in applications. Without it, the program simply cannot process graphics commands correctly. The error occurs not because you deleted something, but most often because the required version of DirectX is not installed or is outdated.

In this article, we will look at several simple and safe ways to restore this file. We will not suggest downloading DLLs from questionable sites, but will use official methods from Microsoft that are guaranteed to solve the problem and keep your computer safe.

Method 1: Download d3dcompiler_43.dll

This is a simple method in which we will manually place the DLL file in the system. It is relevant in situations where only one file has a performance issue. You just need to download d3dcompiler_43.dll and then place it in the system directory. In Windows x64, this is C:\Windows\SysWOW64 and C:\Windows\System32, in x86, only the last one, since this version does not have the “SysWOW64” folder.

Download d3dcompiler_43.dll

Additionally, the file may require registration in the system.

1. You can do this yourself through Command Prompt, open with administrator privileges.
2. 
3. Type the command regsvr32 d3dcompiler_43.dll and confirm its execution with the key Enter. If the library was placed in two folders, also type regsvr32 “C:\Windows\SysWOW64\d3dcompiler_43.dll”.
4. The operation was successful. A new boot record has been written to the first sector of the boot partition. the second command, Bootrec.exe /FixBoot, writes a new boot sector., method #3 the operation was successfully completed. Exit. Next, try to boot Windows 7..
5. In the command prompt window, enter the command Bootrec and press Enter

   Complete information about the utility's capabilities will be displayed. Select the main boot record entry Bootrec.exe /FixMbr.

It will scan all your hard drives and partitions for operating systems and, if any are found, a corresponding warning will be displayed. Then enter the command

Restoring the Windows 7 boot loader manually (method #2)

If Windows 7 has stopped booting and displays an error about the boot loader being missing, this is not a death sentence — the problem can be fixed. Often, the system simply cannot find where to start booting due to crashes, incorrect updates, or installation errors. You can restore the boot loader using an installation disc or flash drive: after selecting the language, open the recovery menu and run “Automatic System Recovery.” This is usually enough to restore functionality. If that doesn't work, there is a manual method using the command line. The main thing is not to panic and follow the steps.

More info: Reinstalling and adding missing DirectX components in Windows 10

If you have Windows 7 or earlier, do the following:

Download DirectX

1. Select your Windows language.
2. Click ‘Download’.
3. 

   After you download this file, do the following:

4. We accept the terms of the agreement.
5. Press the button “Next”.
6. 

   The installation will begin, during which all missing files will be downloaded.

7. Click “Finish”.

Method 3: Troubleshooting the game

It is quite possible that the application refuses to use d3dcompiler_43.dll not because of damage or absence of the file in Windows, but due to some internal problems. For example, the installer itself may be corrupted (not fully downloaded or damaged by a third party), or it may have various code issues, which is most often the case with pirated and modified copies of games. In addition, the installation of d3dcompiler_43.dll may be blocked by built-in or system antivirus software. We recommend that you reinstall the game, taking into account all of the above signs of a problem with it.

If the game is licensed and was purchased through a special platform, such as Steam or Origin, it makes sense to first check the integrity of its files using a special function.

Steam

1. Expand the window “Library” game client and find the game that you can't launch. Right-click on it and go to “Properties”.
2. 
3. Go to the tab. “Local Files”.
4. 
5. Use the button “Verify game file integrity”, and when the procedure is complete, you will receive a report on whether anything has been fixed. If not, you will have to try reinstalling.
6. 

Origin

1. Open Library in the game client window, find the game, right-click on it and select “Restore”.
2. 
3. The scan will start immediately, and you can monitor it in the same tile.
4. 
5. Once the operation is complete, a notification will appear informing you that you can start the game.
6. 

As you can see, the problem with the missing d3dcompiler_43.dll file is not a death sentence, but just a technical glitch that can be fixed fairly quickly. Most often, everything can be solved by simply reinstalling the video drivers or installing the necessary distribution from Microsoft.

The main thing is to download libraries only from official websites so as not to infect your computer with viruses instead of solving the problem. Don't just copy unfamiliar files from questionable sources.

We hope that everything worked out for you and the game or program finally started. If the problem persists, it may be due to a more serious malfunction, and it is worth looking for additional solutions specifically for your application.