Windows 10 Services

USB Connector Manager UCSI Client - Windows 10 Service

USB Connector Manager UCSI Client 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
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1703 Manual Manual Manual Manual
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1803 Manual Manual Manual Manual

Default Properties

Display name:USB Connector Manager UCSI Client
Service name:UcmUcsi
Error control:normal

Default Behavior

The USB Connector Manager UCSI Client service is a kernel mode driver. If USB Connector Manager UCSI Client fails to start, the error is logged. Windows 10 startup proceeds, but a message box is displayed informing you that the UcmUcsi service has failed to start.

Restore Default Startup Type for USB Connector Manager UCSI Client

Automated Restore

1. Select your Windows 10 edition and release, and then click on the Download button below.

2. Save the RestoreUSBConnectorManagerUCSIClientWindows10.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 UcmUcsi.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.