Start running (or use Win+R shortcut key to bring up running)

Enter: dxdiag during the operation, and then click OK to open the DirectX diagnostic tool.

System:

The system displays basic information in the operating system, such as computer name, operating system version, language environment, computer model, BIOS version, processor, memory and DirectX version number. Don't forget to check and find the WHQL digital signature.

DirectX file:

Shown here are the system files and dynamic chains of DirectX diagnostic tools, which will be displayed in the description of any problems.

Show:

Here is the model of the video card and the version number of the driver. From here, we can see that some drivers have not been certified by Microsoft Lab (WHQL), which often leads to blue screen and other failures. Here, you can also test the display function of the graphics card. If a mismatched graphics driver is installed, the video will appear black and blue. At this time, you can try to disable the hardware acceleration function and see if it can be improved.

Voice:

What is shown here is the model of the sound card device and the version number of the sound card driver (without the certification of Microsoft Lab (WHQL)). This problem should be treated dialectically. Some verified drivers can also cause system blue screen and other failures. If there is something wrong with the sound, you might as well check it here.

Input:

The following are input devices: mouse, keyboard, tablet computer, etc. If in doubt, you will be prompted in the description.

Network:

Network-related devices and driver versions are provided here. With the progress of the times, some devices have been eliminated, but because they are still in the computer, they will also display unopened (actively disabled) and mismatched drivers.