Windows Audio won't start....MMCSS service

  • Thread starter Thread starter mtrox
  • Start date Start date
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mtrox

Upgraded a client's Toshiba Vista Ultimate to SP1. Now the audio won't work.
The Windows Audio Sevice is set to "Automatic" but when I try to start it, I
get this error:

Error 1075: The dependency service is not started or is marked for deletion.

All dependent services are running. And if I check the Event viewer, I also
see:

Event 7003. The Windows Audio Service depends the following service: MMCSS.
This service might not be installed.

I don't know that service and don't see it listed in the MMC. I also see
this problem in Google from some others. Is it a common problem? Right now
client has no sound...just a red X over the volume icon down in the sys tray.
 
My first thought would be to remove the sound card and allow it to reinstall
the driver, that should reset things.
 
Have you checked for an updated sound driver or motherboard/chipset drivers?
I have a machine that required a BIOS update for the onboard sound to work
properly.
 
Yep. No update for the chipset, but did the sound driver and BIOS. Still
the Windows Audio Service will not start.
 
sfc /scannow from an elevated command prompt?

mtrox said:
Yep. No update for the chipset, but did the sound driver and BIOS. Still
the Windows Audio Service will not start.
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