Virtual Machine Bus - Windows 10 Service
Microsoft Hyper-V Virtual Machine Bus Child Driver by Microsoft Corporation.
This service also exists in Windows 7 and 8.
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: | Virtual Machine Bus |
| Service name: | vmbus |
| Type: | kernel |
| Path: | %WinDir%\System32\drivers\vmbus.sys |
| Error control: | normal |
| Group: | System Bus Extender |
Default Behavior
The Virtual Machine Bus service is a kernel mode driver. If Virtual Machine Bus fails to start, the error is logged. Windows 10 startup proceeds, but a message box is displayed informing you that the vmbus service has failed to start.
Restore Default Startup Type of Virtual Machine Bus
Automated Restore
1. Select your Windows 10 edition and release, and then click on the Download button below.
2. Save the RestoreVirtualMachineBusWindows10.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 vmbus.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.