How to use DxDiag to scan your PC and fix problems

Last update: 25/02/2025
Author Isaac
  • DxDiag is a tool integrated into Windows to diagnose graphics and sound problems.
  • Provides detailed information about your system including GPU, sound, and input devices.
  • Allows you to export diagnostic reports in .txt format for technical support.
  • You can check and update the DirectX version from the tool itself.

dxDiag

If you have ever experienced performance issues on your PC, especially when playing games, you may need to get detailed information about the hardware and system software. To do this, Windows has a tool called DxDiag, which allows you to diagnose possible faults related to DirectX, the API that manages graphics and sound in many games and applications.

In this article we will explain in detail what DxDiag is, how to use it to obtain information about your equipment, what data it provides and how to export these reports to share them with technical support if necessary.

What is DxDiag?

DxDiag, or DirectX Diagnostic Tool, is a utility built into Windows which allows you to obtain detailed information about DirectX-related hardware and software components. Its main purpose is to help diagnose Graphic, audio and performance issues that may affect the operation of games and other multimedia applications.

In its older versions it also allowed some tests and repairs to be performed on DirectX compatible devices, but since Windows Vista onwards, its main function is to provide detailed information about the system.

How to run DxDiag

Accessing the DirectX Diagnostic Tool is very simple. Just follow these steps:

  1. Press the windows key and writes dxDiag in the search bar.
  2. Select the app dxDiag in the results.
  3. If a message appears asking if you want to verify the digital signature of the drivers, select Yes.
  4. The tool will open and display information divided into several tabs.

Information provided by DxDiag

dxDiag

DxDiag organizes your system information into four main tabs: System, Display, Sound and Input. Each of them contains key data about a specific aspect of the hardware.

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System tab

Here you will find General information about your team, including:

  • Name and model of the equipment.
  • Operating system version.
  • Motherboard manufacturer and model.
  • Processor and its speed.
  • Total amount of RAM installed.
  • DirectX version installed.

Display Tab

This section shows your graphics card details such as:

  • Name and model of the GPU.
  • Available video memory.
  • Screen resolution and refresh rate.
  • Graphics card driver version.
  • Support for DirectX 12 Ultimate or other versions.

Sound tab

DxDiag also collects data from audio devices installed in the system. Here you will find information about:

  • Primary sound card and other audio sources.
  • Sound driver version and details.
  • Possible errors detected by the tool.

Input Tab

This last tab presents information about the input devices connected to the computer, such as keyboards, mice, joysticks or microphones.

How to export a DxDiag report

Occasionally, it may be necessary to save a DxDiag report to share with technical support. To do so, follow these steps:

  1. Open the DxDiag tool.
  2. Wait for it to collect all the information (this will be indicated by a progress bar at the bottom left).
  3. Click on Save all information.
  4. Choose a place to save the file (for example, your desktop) and give it an easy-to-remember name.
  5. Save the file in format .txt.
  6. Please share it with technical support via email or support forum.

Check what version of DirectX you have

In the System In DxDiag you will find the line that indicates the version of DirectX installed on your computer. If your PC does not find DxDiag or you have an old version of this tool, you probably need to update DirectX.

To update DirectX to the latest version, simply use Windows Update on Windows 10 and 11, as these versions include the latest DirectX update by default.

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If you are on an older version of Windows, you can check the official Microsoft website to download the latest DirectX update.

DxDiag is an extremely useful tool for diagnosing graphic problems y Sound on your PC. It’s easy to use and can help you detect hardware incompatibilities, driver failures, and even share detailed information with technical support if you need it. Whether you’re an experienced gamer or just want to get to know your rig better, this tool will provide you with all the information you need about your system’s performance and configuration.