Unable to start, edit, or create a Hyper-V virtual system on a computer that runs Windows Server


McAfee VirusScan Enterprise (VSE) 8.8

Microsoft Windows Server 2012 Standard
Microsoft Windows Server 2012 Datacenter 



When you try to create, start, or edit a Hyper-V virtual system on a computer that runs Windows Server, you see one of the following errors:

Cannot access the settings for the selected virtual machine.

An error occurred trying to find the virtual machine
The computer 'xxxx' failed to perform the requested operations because it is out of memory or disk space.


This issue is caused by missing VSE exclusions for the Windows Server required for the Hyper-V virtual systems.


Implement the Microsoft recommended exclusions. For details, see http://support.microsoft.com/kb/961804.

For instructions on how to set VirusScan exclusions, see KB58692.

  • Occasionally, you have to type the exclusions using the physical address format rather than the logical address. For example, **\ProgramData\Microsoft\Windows\Hyper-V\**, instead of C:\ProgramData\Microsoft\Windows\Hyper-V.
    For more information about VSE exclusions and hardware paths (physical address versus logical address), see KB61000.
  • You might have to restart your computer to remove the error after the exclusions are in place.


In some environments, certain processes that interact with (.xml) files that relate to the VM templates might cause the (.xml) file to be scanned. It might lead to a deployment failure even though a proper read and scan takes place on the .xml files. 

If you have implemented all exclusions recommended by Microsoft (see Solution 1 above) and you still experience deployment failures, try excluding the types (xml). 

NOTE: You have to exclude this file type for Default, Low, and High-risk policies. If you exclude this file type and it resolves the issue during your VM deployment, contact Technical Support to help you with a possible refined folder/file exclusion instead of excluding all files of types (.xml).

To contact Technical Support, go to the Create a Service Request page and log on to the ServicePortal.
  • If you are a registered user, type your User ID and Password, and then click Log In.
  • If you are not a registered user, click Register and complete the fields to have your password and instructions emailed to you.


Affected Products

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