Audio Not Functioning

I have recently come across a large number of computers with a similar issue: No Sound from the speakers if a laptop or any of the jacks if desktop or laptopheadphones I have found a solution to this problem which has worked every time in my case. The instructions are as follows: Open an elevated command prompt by right clicking on the start menu entry and selecting "run as administrator". Type "net localgroup Administrators /add networkservice" and press enter Type "net localgroup Administrators /add localservice" and press enter Type "exit" and press enter to close the command prompt Now Restart the computer and you should have audio again.