USB Connector Manager KMDF Class Extension (UcmCx0101) Service Defaults in Windows 10

USB Connector Manager KMDF Class Extension by Microsoft Corporation.

Default Settings

Startup type:Manual
Display name:USB Connector Manager KMDF Class Extension
Service name:UcmCx0101
Service type:kernel
Error control:normal
Group:System Bus Extender
Path:%SystemRoot%\System32\Drivers\UcmCx.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UcmCx0101

Default Behavior

USB Connector Manager KMDF Class Extension is a kernel device driver. In Windows 10 it is starting only if the user, an application or another service starts it. If USB Connector Manager KMDF Class Extension fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the UcmCx0101 service has failed to start due to the error.

Restore Default Startup Configuration for USB Connector Manager KMDF Class Extension

1. Run the Command Prompt as an administrator.

2. Copy the command below, paste it into the command window and press ENTER:

sc config UcmCx0101 start= demand

3. Close the command window and restart the computer.

The UcmCx0101 service is using the UcmCx.sys file that is located in the %WinDir%\System32\Drivers folder. If the file is changed, damaged or deleted, you can restore its original version from Windows 10 installation media.