Software & Apps Windows Fix D3dcompiler_43.dll Not Found or Missing Errors A Troubleshooting Guide for D3dcompiler_43.dll Errors By Tim Fisher General Manager, VP, Lifewire.com Tim Fisher has 30+ years' professional technology support experience. He writes troubleshooting content and is the General Manager of Lifewire. our editorial process Facebook Twitter LinkedIn Tim Fisher Updated November 15, 2019 Windows The Ultimate Laptop Buying Guide Tweet Share Email D3dcompiler_43.dll issues are caused in one way or another by an issue with Microsoft DirectX. The d3dcompiler_43.dll file is one of many files contained in the DirectX software collection. Since DirectX is utilized by most Windows based games and advanced graphics programs, d3dcompiler_43.dll errors usually show up only when using these programs. There are many ways d3dcompiler_43.dll errors can show up on your PC, but these are some of the more common specific messages you might see: D3dcompiler_43.DLL Not FoundThe file d3dcompiler_43.dll is missingFile d3dcompiler_43.dll not foundD3dcompiler_43.dll not found. Reinstalling might help fix this The d3dcompiler_43.dll error might show when the game or software program is started or at some point during installation when DirectX components might be trying to update. The d3dcompiler_43.dll error message could apply to any program that utilizes Microsoft DirectX, like AutoDesk 3ds Max, MonoGame, and others, but it's most often associated with video games. "Grand Theft Auto," "Chivalry: Medieval Warfare," "Sniper: Ghost Shooter," "Far Cry Primal," "Battlefield," "Need for Speed," "MechWarrior Online (MWO)," and "The Elder Scrolls Online: Morrowind" are just a few examples of video games that has been known to throw a d3dcompiler_43.dll error message. Any of Microsoft's operating systems since Windows 98 may be affected by d3dcompiler_43.dll and other DirectX issues. This includes Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP, and Windows 2000. How to Fix D3dcompiler_43.dll Errors Do not download the d3dcompiler_43.dll DLL file individually from any "DLL download site". There are several reasons that downloading DLLs from these sites is never a good idea. If you've already downloaded d3dcompiler_43.dll from one of those DLL download sites, remove it from wherever you put it and continue with these steps. Restart your computer if you haven't yet. The d3dcompiler_43.dll error might be a fluke, and since restarting is a common fix for lots of computer problems, it could clear up this DLL error completely. Install the latest version of Microsoft DirectX. Chances are, upgrading to the latest version of DirectX will fix the error "d3dcompiler_43.dll not found," but if not, try DirectX End-User Runtimes (June 2010) instead. Microsoft often releases updates to DirectX without updating the version number or letter, so be sure to install the latest release even if your version is technically the same. The same DirectX installation program works with all versions of Windows including Windows 10, 8, 7, Vista, XP, and more. It will replace any missing DirectX 11, DirectX 10, or DirectX 9 file. Assuming the latest DirectX version from Microsoft doesn't fix the d3dcompiler_43.dll error you're receiving, look for a DirectX installation program on your game or application DVD or CD. Usually, if a game or another program utilizes DirectX, the software developers will include a copy of DirectX on the installation disc. Sometimes, though not often, the DirectX version included on the disc is a better fit for the program than the latest version available online. Uninstall the game or software program and then reinstall it again. Something might have happened to the files in the program that work with d3dcompiler_43.dll and a reinstall could do the trick. If this doesn't work, it's possible that not all of the program files were actually deleted, or that some registry entries related to the DLL file remained, and that's what's causing the error even after reinstalling the software. Try again with a free uninstaller tool and see if that doesn't correct the d3dcompiler_43.dll error message. Restore the d3dcompiler_43.dll file from the latest DirectX software package. If the above troubleshooting steps haven't worked to solve your d3dcompiler_43.dll error, try extracting the d3dcompiler_43 DLL file individually from the DirectX downloadable package. Update the drivers for your video card. While it's not the most common solution, in some situations updating the drivers for the video card in your computer could correct this DirectX issue. Need More Help? If you don't want to fix this problem yourself, see How Do I Get My Computer Fixed? for a full list of your support options, plus help with everything along the way like figuring out repair costs, getting your files off, choosing a repair service, and a whole lot more.