PCI\VEN_8086&DEV_9DE3 it’s a Intel® Management Engine. If you are lacking performance, download the driver for the Intel® Management Engine and then run and install the file and then reboot. Download the driver under this text. The driver is compatible with Windows 10, Windows 11. You can try to run the installer on Windows 8.1. Also this device is also known as PCI\VEN_8086&DEV_9DE3&SUBSYS_8548103C&REV_30, PCI\VEN_8086&DEV_9DE3&CC_070002, PCI\VEN_8086&CC_070002, PCI\CC_070002 drivers will work on this hardware. You can ask for help in the comments. Your users will tell you what to do. Also I really recommend to watch how to install drivers video-manual.
Here are the newest divers. Ignore parameters such as rev (0100, 0200, 0300, 0400), subsys (cc, pid). Look only at ven and dev device id.
PCI\VEN_8086&DEV_9DE3 Driver's for Windows 10 11 8.1 7 and HowTo
Emergency Link https://www.intel.com/content/www/us/en/download/682431/intel-management-engine-drivers-for-windows-10-and-windows-11.html
I am a service engineer with 15 years of experience and I am constantly looking for drivers for various hardware for work. I’m tired of using bad sites and I created a good one – you are on it. Enjoy using the site. Unfortunately, I have never held 70% of the hardware for which I publish drivers in my hands, and therefore some drivers may not work. Humble yourself.