No sound on virtual machine

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.

   <p><img alt="" src="https://kb.parallels.com/Attachments/kcs-36784/Screen%20Shot%202015-03-12%20at%204.43.14%20PM.png" /></p>
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   <li>
   <p>Execute the following commands:</p>
   
   <pre>
   

   net localgroup Administrators /add networkservice

   net localgroup Administrators /add localservice

   <p><img alt="alttext" src="https://kb.parallels.com/Attachments/kcs-36784/3.jpg" title="title" /></p>
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   <li>Restart virtual machine.