The byte was 0x17 . ASCII for a device control character: “End of Transmission Block.”
Standard Intel MEI drivers from the Intel Download Center often fail to install on newer builds of Windows 10/11 due to digital signature enforcement or version mismatches. pci ven8086 ampdev8c22 ampsubsys309f17aa amprev04 patched
The "patched" status is typically achieved by installing the Intel Chipset Device Software The byte was 0x17
If the installer fails, you can force the installation manually: Right-click the "Unknown Device" in Device Manager. Select "Update Driver" > "Browse my computer for drivers." pci ven8086 ampdev8c22 ampsubsys309f17aa amprev04 patched