Windows 10: Multimedia Audio Services missing

Hi all, currently I use windows 10 Education version 2004. Audio, sound of web, mp3, gaming, ... work normally, but I saw in task scheduler have 2 task

- Cache task

- Multimedia sound task


- When I start up 2020/07/28 19:00:00 and checked task scheduler both of them status running, results unknown

- I restart and start up again I saw both of them 2020/07/28 19:00:00 results failed, 2020/07/28 19:05:00 results unknown although running.


+ Cache task will be cache of IE and windows audio will depend to Multimedia class schedule, RPC, Endpoint builder. I only saw RPC and endpoint builder at dependencies of windows audio Multimedia class scheduler not see it. I open services and not see Multimedia class schedule, I check in system 32 not saw .dll file only saw .sys at system32/driver. Audio still work perfectly hear mp3, video, movies, gaming ...... So I have questions:


1. Can I disable Cache task ? Because I use chrome not IE

2. Can I disable Multimedia sound task and is it affected at the moment ? Because Windows audio I see it not depend it.

3. Both of them results only fail when I restart windows or I press shutdown and turn on again.

- Display task running only 2 of them, but at first Started at and results are unavailable, after restart I see they running.

Thank you very much.

:)

 

Multimedia class scheduler missing from service

Turned on my computer the other day and the audio does not work. I get an error that the service in not running. When I try to start the service, I get an error:

Windows count not start Windows Audio service on Local Computer. Error 0x80070005: Access is denied.

I opened the properties of the service and noticed one of the dependencies appears to be missing. Multimedia Class Scheduler is not listed and it is not included in my list of services. I checked my registry and mmcss entry is there is there in the following
location:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\MMCSS

I completed the following scans, per linked instructions, with no errors generated:

SFC /SCANNOW

I have lost 'The multimedia class scheduler' from my computer, causing my audio on the computer not to work.

DISM.exe /Online /Cleanup-image /Scanhealth

DISM.exe /Online /Cleanup-image /Restorehealth

Missing mmcss service after rebooting pc

I tried to reinstall the service per these instructions:

Multimedia Class Scheduler - Windows 10 Service - batcmd.com

I have tried to uninstall audio drivers and reinstall without any luck.

Finally, I tried to restore windows. However, for some reason the USB drives don't work at the "Select Keyboard" screen and I can't do a system restore.

 

Windows 10 missing Multimedia Class Scheduler

My PC crashed and I had to reinstall my Windows 10 Home OS. After this fresh install, audio would no longer come out on my TV when I hook my laptop up via HDMI.

I looked around a few forums and found one here on the official site that suggested this step for the same problem:

=====
c. Scroll down through the list and find the following services.
Plug and Play

Multimedia Class Scheduler

Windows Audio Endpoint Builder

=====



The problem is, Multimedia Class Scheduler is not among the list of services.

The .sys file exists in my System32/drivers folder, at least.

Would downloading the mmcss.dll file solve my problem? All my audio and video drivers are updated, I'd been updating them repeatedly in the hopes that it would fix my problem.

LAPTOP: Asus X455LA

OS: Windows 10 Home

 

After running Audio troubleshooter error: 'one or more audio service isn't running'

Hi Peter,

Thank you for posting in Microsoft Community, we appreciate your interest in Windows 10.

As you receive the error message: 'one or more audio service isn't running', this might have occurred due to the audio services.

I suggest you to restart the service, set it to automatic and check if it helps.

Step 1: Stop the Windows Audio service.

• Press Windows Key + R on the keyboard and type
  services.msc, Services window gets opened.
• Search for Windows Audio service, right click on it and click on
  Stop.
• Restart the computer.

Step 2: Start the service and set it to automatic:

• Press Windows Key + R on the keyboard and type
  services.msc, Services window gets opened.
• Search for Windows Audio service, right click on it and click on
  Properties.
• Start the service, set
  Startup type to Automatic.

Hope it helps. Reply to the post with an updated status of this issue for further assistance.