USB Connector Manager UCSI Client (UcmUcsi) Service Defaults in Windows 10
USB Connector Manager UCSI Client by Microsoft Corporation.
The USB Connector Manager UCSI Client service does not exist in:
- Windows 10 Home 1903
- Windows 10 Pro 1903
- Windows 10 Education 1903
- Windows 10 Enterprise 1903
- Windows 10 Home 2004
- Windows 10 Pro 2004
- Windows 10 Education 2004
- Windows 10 Enterprise 2004
- Windows 10 Home 20H2
- Windows 10 Pro 20H2
- Windows 10 Education 20H2
- Windows 10 Enterprise 20H2
- Windows 10 Home 21H1
- Windows 10 Pro 21H1
- Windows 10 Education 21H1
- Windows 10 Enterprise 21H1
- Windows 10 Home 21H2
- Windows 10 Pro 21H2
- Windows 10 Education 21H2
- Windows 10 Enterprise 21H2
- Windows 10 Home 22H2
- Windows 10 Pro 22H2
- Windows 10 Education 22H2
- Windows 10 Enterprise 22H2
Default Settings
| Startup type: | Manual |
| Display name: | USB Connector Manager UCSI Client |
| Service name: | UcmUcsi |
| Service type: | kernel |
| Error control: | normal |
| Path: | %SystemRoot%\System32\drivers\UcmUcsi.sys |
| Registry key: | HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UcmUcsi |
Default Behavior
USB Connector Manager UCSI Client 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 UCSI Client fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the UcmUcsi service has failed to start due to the error.
Restore Default Startup Configuration of USB Connector Manager UCSI Client
1. Run the Command Prompt as an administrator.
2. Copy the command below, paste it into the command window and press ENTER:
sc config UcmUcsi start= demand
3. Close the command window and restart the computer.
The UcmUcsi service is using the UcmUcsi.sys file that is located in the C:\Windows\System32\drivers directory. If the file is removed or corrupted, read this article to restore its original version from Windows 10 installation media.