No sound on virtual machine

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Symptoms

  1. No sound on virtual machine

  2. Red cross next to the audio icon in the Windows task bar notification area. When right-clicking the audio icon in the notification area > Troubleshoot sound problems, it says Audio device is disabled:

  3. In the Device Manager (press cmd+R combination > type devmgmt.msc > hit Enter) the audio device is up and running (there are no exclamation, question, 'down arrow' marks next to device icon):

Cause

Responsible system accounts are not in the local Administrators group.

Resolution

  1. Open Command Prompt: click Start > in the search box type cmd.exe > right-click on the appeared program > Run as administrator.

  2. Execute the following commands:

    net localgroup Administrators /add networkservice
    
    net localgroup Administrators /add localservice 
    
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  3. Restart virtual machine.

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