Windows 10 Services

QoS Packet Scheduler - Windows 10 Service

QoS Packet Scheduler.

This service also exists in Windows 7, 8, Vista and XP.

Startup Type

Windows 10 version Home Pro Education Enterprise
1507 System System System System
1511 System System System System
1607 System System System System
1703 System System System System
1709 System System System System
1803 System System System System

Default Properties

Display name:QoS Packet Scheduler
Service name:Psched
Error control:normal

Default Behavior

The QoS Packet Scheduler service is a kernel mode driver. If QoS Packet Scheduler fails to start, the error is logged. Windows 10 startup proceeds, but a message box is displayed informing you that the Psched service has failed to start.


If QoS Packet Scheduler is stopped, the Quality Windows Audio Video Experience service fails to start and initialize.

Restore Default Startup Type for QoS Packet Scheduler

Automated Restore

1. Select your Windows 10 edition and release, and then click on the Download button below.

2. Save the RestoreQoSPacketSchedulerWindows10.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 to save changes.

Note. Make sure that the pacer.sys file exists in the %WinDir%\System32\drivers folder. If this file is missing you can try to restore it from your Windows 10 installation media.