Mouse Class Driver (Mouclass) Service Defaults in Windows XP

Mouse Class Driver by Microsoft Corporation.

Default Settings

Startup type: System
Display name:Mouse Class Driver
Service name:Mouclass
Service type:kernel
Error control:normal
Group:Pointer Class
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Mouclass

Default Behavior

Mouse Class Driver is a kernel device driver. In Windows XP it is starting right at Kernel initialization. If the Mouse Class Driver fails to start, the technical information about the error is added to the Event Log. Windows XP startup should proceed, but a message box should be displayed informing the user that the Mouclass service has failed to start.

Restore Default Startup Configuration of Mouse Class Driver

1. Run the Command Prompt.

2. Copy the commands below, paste them into the command window and press ENTER:

sc config Mouclass start= system
sc start Mouclass

3. Close the command window and restart the computer.

The Mouclass service is using the mouclass.sys file that is located in the C:\Windows\system32\DRIVERS directory. If the file is removed or corrupted, read this article to restore its original version from Windows XP installation media.