Processor Driver Service Defaults in Windows 7

Processor Device Driver by Microsoft Corporation.

Default Settings

Startup type:Manual
Display name:Processor Driver
Service name:Processor
Service type:kernel
Error control:normal
Group:Extended Base
Path:%SystemRoot%\system32\DRIVERS\processr.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Processor

Default Behavior

Processor Driver is a kernel device driver. In Windows 7 it won't be started if the user doesn't start it. If Processor Driver fails to start, Windows 7 attempts to write the failure details into Event Log. Then Windows 7 startup should proceed and the user should be notified that the Processor service is not running because of the error.

Restore Default Startup Configuration for Processor Driver

1. Run the Command Prompt as an administrator.

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

sc config Processor start= demand

3. Close the command window and restart the computer.

The Processor service is using the processr.sys file that is located in the %WinDir%\system32\DRIVERS folder. If the file is changed, damaged or deleted, you can restore its original version from Windows 7 installation media.