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title description ms.date manager audience ms.topic localization_priority ms.reviewer ms.custom
VMBus device doesn't load
Describes an issue in which the VMBus device doesn't load on a virtual machine.
12/26/2023
dcscontentpm
itpro
troubleshooting
medium
kaushika, leons, v-srisan
sap:Virtualization and Hyper-V\Integration components, csstroubleshoot

The VMBus device doesn't load on a virtual machine that is running on a computer with Hyper-V installed

This article provides help to fix an issue where the VMBus device doesn't load on a virtual machine that's created by using Virtual Server 2005 or Virtual PC 2007.

Original KB number:   954282

Symptoms

Consider the following scenario.

  • You have a computer that has Hyper-V installed.
  • You create a virtual machine on the computer.
  • You create the virtual machine from a virtual hard disk image (.vhd file) that was created by using Microsoft Virtual Server 2005 or Microsoft Virtual PC 2007.

In this scenario, the VMBus Integration Services device does not load. When you open Device Manager on the virtual machine, a yellow triangle that has an exclamation point on it appears next to VMBus. When you double-click VMBus, the VMBus Properties dialog box displays one of the following messages:

This device cannot find enough free resources that it can use. (Code 12).

This device cannot start. (Code 10).

Cause

This issue occurs because the hardware abstraction layer (HAL) isn't automatically updated.

When a virtual machine is created by using Virtual Server or Virtual PC, the Advanced Configuration and Power Interface (ACPI) HAL is used. The Integration Services requires an Advanced Programmable Interrupt Controller (APIC) HAL to load the VMBus device correctly.

Resolution

To resolve this issue, follow these steps:

  1. Start the virtual machine.
  2. Click Start, click Run, type Msconfig.exe, and then click OK.
  3. In the System Configuration dialog box, click the Boot tab, and then click Advanced Options.
  4. In the BOOT Advanced Options dialog box, click to select the Detect HAL check box, and then click OK.
  5. Click Yes to restart the virtual machine.
  6. After the virtual machine is restarted, open Device Manager, and then verify that all Integration Services devices are installed.
  7. In Device Manager, expand Computer, and then verify that an APIC-based PC HAL is listed. For x86 virtual machines, this item will be listed as APIC x86-based PC. For x64 virtual machines, this item will be listed as APIC x64-based PC.

Note

You can clear the Detect HAL check box that you selected in step 4. If the Detect HAL check box is selected, the virtual machine takes a slightly longer time to start.

More information

For more information, see Hyper-V technology.