In the following post I’ll guide you on what you need to do when encountering a D3d9.dll missing error or similar errors related to this dll file. In most cases there are two actions that you need to take in order to resolve this issue – nothing complicated or too technical. Anyway, I hope you’ll find this post helpful.
Part of your DirectX installation, and to be more precise - it is part of the Microsoft Direct3D 9 Runtime. The file is usually located under C:\Windows\System32. The DirectX technology (already installed in your Windows) adds functionality and significantly enhances the performance of PC games and other multimedia based applications.
Common known problems
Problems related to this dll are usually encountered in the following situations:
(1) While trying to run PC games or other multimedia based applications.
(2) While installing or using programs such as Yahoo Messenger and Skype.
The most typical error message indicates that d3d9.dll is missing or not present.
The causes to this error
The most common cause to this D3d9.dll missing error is using an incompatible version of this dll. Other causes are when the file is corrupt or when using incompatible or too old video card drivers or other ‘display related’ drivers.
(1) Update your Windows with the latest DirectX updates
An automatic Windows Update should install the latest required DirectX updates if this for some reason didn’t happen so far. Run a quick Windows Update and see if it solves the problem.
If it didn’t solve the problem:
(2) Download and install the latest DirectX version
You can download latest DirectX installation from here.
(3) Update your Video card’s driver + replace incompatible drivers
To complete the repair process of the D3d9.dll missing error - make sure that you’re using the latest official and most importantly COMPATIBLE Video card driver. Also, make sure that there are no other obsolete and incompatible drivers related to your graphic display. Use the following tip in order to detect and replace such drivers:
(1) Download this drivers diagnostic tool
(2) Conduct an in-depth drivers scan
(3) Wait until the scan completes
(4) Open the Drivers section
(5) Is your Video card’s driver valid?
(6) If NOT – replace it!
(7) Are there any other incompatible/obsolete drivers?
(8) If YES – replace them as well
(9) Restart your PC