- Click Start, and then click Run.
- Type dxdiag, and then click OK.
- On the System tab, note the version of DirectX that is displayed on the DirectX Version line.
- On the various tabs, check the version information for each DirectX file.
- When you are finished checking file versions, click Exit.
To download the latest version of DirectX, click the following article number to view the article in the Microsoft Knowledge Base:
Article ID: 157730 - Last Review: Jun 28, 2012 - Revision: 1