UMBus Enumerator Driver - Windows 10 Service
User-Mode Bus Enumerator by Microsoft Corporation.
This service also exists in Windows 11, 8 and Vista.
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: | UMBus Enumerator Driver |
| Service name: | umbus |
| Type: | kernel |
| Path: | %WinDir%\System32\DriverStore\FileRepository\umbus.inf_x86_8351669303b483f7\umbus.sys |
| Error control: | normal |
| Group: | Extended Base |
Default Behavior
The UMBus Enumerator Driver service is a kernel mode driver. If UMBus Enumerator Driver fails to start, the error is logged. Windows 10 startup proceeds, but a message box is displayed informing you that the umbus service has failed to start.
Restore Default Startup Type of UMBus Enumerator Driver
Automated Restore
1. Select your Windows 10 edition and release, and then click on the Download button below.
2. Save the RestoreUMBusEnumeratorDriverWindows10.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 umbus.sys file exists in the %WinDir%\System32\DriverStore\FileRepository\umbus.inf_x86_8351669303b483f7 folder. If this file is missing you can try to restore it from your Windows 10 installation media.