To use the DirectX Diagnostic Tool to determine the version of DirectX that is installed on your computer, follow these steps: 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.

This tool is used to collect info about devices to help troubleshoot problems with DirectX sound and video. A support person might ask for this info, or you might post it in a forum when you ask for help.

It is particularly useful for gathering information that can help diagnose issues with a device's configuration. The tool can display a vast array of details, including installed hardware, system drivers, services, and running processes, among others.

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Download the drivers for the desired device from the device manufacturer's site. Make sure to download the correct drivers that match the version and architecture of Windows. Once downloaded, if necessary, uncompress the downloaded drivers. Make a note of where the drivers are located on the Windows device.

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Check which version of DirectX is installed. The DxDiag tool reports detailed information about the DirectX components and drivers installed on your system and can be used. Swipe in from the right edge of the screen, and then tap Search. Type dxdiag in the search box. Or, just type dxdiag from Start. DirectX versions and updates by Operating System

Windows includes a tool called Microsoft System Information (Msinfo32.exe). This tool gathers information about your computer and displays a comprehensive view of your hardware, system components, and software environment, which you can use to diagnose computer issues.