This service exists in Windows 11 only.
Windows 11 version | Home | Pro | Education | Enterprise |
---|---|---|---|---|
21H2 | Manual | Manual | Manual | Manual |
22H2 | Manual | Manual | Manual | Manual |
23H2 | Manual | Manual | Manual | Manual |
Display name: | Mellanox ConnectX Bus Enumerator |
Service name: | mlx4_bus |
Type: | kernel |
Path: | %WinDir%\System32\drivers\mlx4_bus.sys |
Error control: | normal |
Group: | NDIS |
The Mellanox ConnectX Bus Enumerator service is a kernel mode driver. If Mellanox ConnectX Bus Enumerator fails to start, the error is logged. Windows 11 startup proceeds, but a message box is displayed informing you that the mlx4_bus service has failed to start.
1. Select your Windows 11 edition and release, and then click on the Download button below.
2. Save the RestoreMellanoxConnectXBusEnumeratorWindows11.bat file to any folder on a local drive such as SSD or a hard disk.
3. Right-click the downloaded batch file and select Properties.
4. Check the Unblock checkbox and click OK.
5. Right-click the batch file again and select Run as administrator.
6. Restart the computer to save changes.
Note. Make sure that the mlx4_bus.sys
file exists in the %WinDir%\System32\drivers
folder. If this file is missing you can try to restore it from your Windows 11 installation media.