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How to fix D3DCompiler_43.dll is missing error in Quantum Break

Quantum Break is the game that I was expecting for so long. However, I was disappointed when it came out for PC. The game is lagging so much, even though I have a high-end computer. It is not optimized, but what could we expect from Microsoft. Anyway, one day when I wanted to show Quantum Break to my friend it suddenly refused to launch and provided me with system error – something like the application cannot be launched because d3dcompiler_43.dll is missing from your computer, try reinstalling the application to fix the problem. Well, I’ve tried to reinstall the game, but it was useless. It looks like my computer refused to run the game. By searching on the Internet I found that a lot of people having similar problem and there is a solution.


D3dcompiler_43.dll is missing error in Quantum Break usually happens due to high activity of d3dcompiler_43.dll file. Sometimes anti-virus software may find that activity suspicious and simply quarantine or remove the library. Without the library user won’t be able to run the game and other applications. The solution is quite simple, you just need to download d3dcompiler_43.dll file from here: and after that install it by following the installation instructions provided on the downloading page. At least, this helped me to fix d3dcompiler_43.dll is missing error in Quantum Break PC version.

During my search for the solution I found that a lot of people having problems with steam_api.dll, xinput1_3.dll and steam_api64.dll not found errors. I am sure you can fix those errors by doing the same as I described above. Simply download, those libraries and install them manually.

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