Enables relative prioritization of work based on system-wide task priorities. This is intended mainly for multimedia applications. If this service is stopped, individual tasks resort to their default priority.
|Windows 8 edition||Windows 8||Windows 8.1||Windows 8.1 Update 1|
|Display name:||Multimedia Class Scheduler|
|Path:||%WinDir%\system32\svchost.exe -k netsvcs|
The Multimedia Class Scheduler service runs as LocalSystem in a shared process of svchost.exe. Other services might run in the same process. If Multimedia Class Scheduler fails to start, the error is logged. Windows 8 startup proceeds, but a message box is displayed informing you that the MMCSS service has failed to start.
If Multimedia Class Scheduler is stopped, the Windows Audio service fails to start and initialize.
1. Select your Windows 8 release and edition, and then click on the Download button below.
2. Save the RestoreMultimediaClassSchedulerWindows8.bat file to any folder on your hard drive.
3. Right-click the downloaded batch file and select Run as administrator.
4. Restart the computer.
Note. Make sure that the
mmcss.dll file exists in the
%WinDir%\system32 folder. If this file is missing you can try to restore it from your Windows 8 installation media.