Having a D3dx9_31.dll missing error? In a minute I’ll show you two easy ways that’ll enable you to detect the source of this error and eventually enable you to repair it. At least one of the provided solutions below should fix the problem.
This module is part of Microsoft DirectX 9 and it is located in C:\Windows\System32 folder. The DirectX technology from Microsoft improves, or better say enhances the performance of graphic and multimedia Windows based applications such as PC games as one example.
The majority of problems that pop up with this dll are among PC game players and other users of multimedia based programs. Usually after installing or reinstalling a game you might encounter the following error: The program can’t start because d3dx9_31.dll is missing from your computer. Try reinstalling the program to fix this problem.
What causes this error?
The most common cause – missing or incompatible version of D3dx9_31.dll.
Another common reason – incorrect or corrupt registered file paths related to this dll. When you launch a game that requires this dll, it can’t be detected by Windows and that causes Windows to pops up an error message about this file being missing.
Quick repair guide
(1) Install the latest DirectX version
The game that you’re using should have done that for you, but is seems like it didn’t…
Anyway, simply download the latest DirectX installation and then install it – this in most cases solves the problem.
In case it didn’t solve the problem:
(2) Scan for D3dx9_31.dll missing related errors
There’s probably a missing or corrupt registered file path(s) in Windows DB related to this dll that needs to be fixed. Simply download the following Windows errors scanner – it’ll detect any errors related to this dll and notify you about their source.
Pinpointing problematic registered dll file paths