USB Connector Manager KMDF Class Extension - Windows 10 Service
USB Connector Manager KMDF Class Extension by Microsoft Corporation.
This service exists in Windows 10 only.
Startup Type
| Windows 10 version | Home | Pro | Education | Enterprise |
|---|---|---|---|---|
| 1507 | Manual | Manual | Manual | Manual |
| 1511 | Manual | Manual | Manual | Manual |
| 1607 | Manual | Manual | Manual | Manual |
| 1703 | Manual | Manual | Manual | Manual |
| 1709 | Manual | Manual | Manual | Manual |
| 1803 | Manual | Manual | Manual | Manual |
| 1809 | Manual | Manual | Manual | Manual |
| 1903 | Manual | Manual | Manual | Manual |
| 1909 | Manual | Manual | Manual | Manual |
| 2004 | Manual | Manual | Manual | Manual |
| 20H2 | Manual | Manual | Manual | Manual |
| 21H1 | Manual | Manual | Manual | Manual |
| 21H2 | Manual | Manual | Manual | Manual |
| 22H2 | Manual | Manual | Manual | Manual |
Default Properties
| Display name: | USB Connector Manager KMDF Class Extension |
| Service name: | UcmCx0101 |
| Type: | kernel |
| Path: | %WinDir%\System32\Drivers\UcmCx.sys |
| Error control: | normal |
| Group: | System Bus Extender |
Default Behavior
The USB Connector Manager KMDF Class Extension service is a kernel mode driver. If USB Connector Manager KMDF Class Extension fails to start, the error is logged. Windows 10 startup proceeds, but a message box is displayed informing you that the UcmCx0101 service has failed to start.
Restore Default Startup Type of USB Connector Manager KMDF Class Extension
Automated Restore
1. Select your Windows 10 edition and release, and then click on the Download button below.
2. Save the RestoreUSBConnectorManagerKMDFClassExtensionWindows10.bat file to any folder on your hard drive.
3. Right-click the downloaded batch file and select Run as administrator.
4. Restart the computer to save changes.
Note. Make sure that the UcmCx.sys file exists in the %WinDir%\System32\Drivers folder. If this file is missing you can try to restore it from your Windows 10 installation media.