UMBus Enumerator Driver - Windows Vista Service
User-Mode Bus Enumerator by Microsoft Corporation.
This service also exists in Windows 10, 11, 7 and 8.
Startup Type
| Windows Vista edition | without SP | SP1 | SP2 |
|---|---|---|---|
| Starter | Manual | Manual | Manual |
| Home Basic | Manual | Manual | Manual |
| Home Premium | Manual | Manual | Manual |
| Business | Manual | Manual | Manual |
| Ultimate | Manual | Manual | Manual |
Default Properties
| Display name: | UMBus Enumerator Driver |
| Service name: | umbus |
| Type: | kernel |
| Path: | %WinDir%\system32\DRIVERS\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 recorded into the Event Log. Windows Vista 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 Vista edition and Service Pack, and then click on the Download button below.
2. Save the RestoreUMBusEnumeratorDriverWindowsVista.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\DRIVERS folder. If this file is missing you can try to restore it from your Windows Vista installation media.