C-Media Multimedia Software Update

  Blessed 01:22 16 Mar 04
Locked

I ran Windows Update and it showed driver update "C-Media Multimedia Software Update Released on March 2002" I downloaded it but when I went to install a box opened that says "Windows was unable to backup your current driver file:C:\\Windows\System\Audio3D.dll" then yes no
Is this download necessary and I check yes should I be concerned because it can't backup my current driver.

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