You may need to run the DirectX Diagnostic Tool (Dxdiag) to check your system requirements or performance, or to send to Tech Support for help resolving a problem.
1) To run the DirectX Diagnostic Tool:
Windows Vista/Windows 7: Go to Start Menu > type "dxdiag" in the Search Bar, and hit the ENTER key.
Windows XP: Go to Start Menu > Run > type "dxdiag" in the Open Bar. Click OK.
2) The DirectX Diagnostic Tool will run. It will take a few moments to complete – you can watch the green progress bar in the left-hand corner.
(If asked about WHQL Certification, click No or Cancel.)
3) Once the Tool has finished, the progress bar will disappear. Click the Save All Information button. This will bring up a Save window. Click Save.
4) You have saved a new text file called Dxdiag to your Desktop.
For help with a Tech Support problem, please send this Dxdiag file as an email attachment to firstname.lastname@example.org.
Tead more about using the DirectX Diagnostic Tool at this link (external Microsoft link).