In order to ensure the stability and compatibility of the system, Microsoft, the world's largest personal operating system software manufacturer, has launched the WHQL certification system. It is the abbreviation of Microsoft Windows Hardware Quality Lab, which means "Microsoft operating system hardware" in Chinese. Quality Laboratory Certification”. This laboratory is mainly engaged in compatibility and stability testing of computer hardware products, drivers and Windows operating system. If it passes the test, it will be proved that the product is 100% compatible with the Windows operating system, thus making the computer system reach unprecedented stability. Therefore, whether the computer product you purchase has passed Microsoft WHQL certification has become the key to the stable operation of the computer. In order to allow consumers to intuitively understand whether the product has passed the certification, Microsoft stipulates that all products that pass WHQL certification will be awarded the "Designed for Windows" mark, and the brand and model of the product will appear on Microsoft's official website and the operating system's hardware compatibility list (HCL) for easy query. The WHQL certification process is very strict, so a driver that has passed WHQL certification can be said to have basically no compatibility issues in Windows systems