Then Windows 10 will start up and notify the user that the USBXHCI service has failed to start due to the error. If USB xHCI Compliant Host Controller fails to start, the failure details are being recorded into Event Log. In Windows 10 it is starting only if the user, an application or another service starts it. USB xHCI Compliant Host Controller is a kernel device driver. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\USBXHCI USB XHCI Driver by Microsoft Corporation. USB xHCI Compliant Host Controller (USBXHCI) Service Defaults in Windows 10