Simple Peripheral Bus Support Library (SpbCx) Service Defaults in Windows 8

SPB Class Extension by Microsoft Corporation.

Default Settings

Startup type:Manual
Display name:Simple Peripheral Bus Support Library
Service name:SpbCx
Service type:kernel
Error control:normal
Path:%SystemRoot%\system32\drivers\SpbCx.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SpbCx

Default Behavior

The Simple Peripheral Bus Support Library service is a kernel device driver. In Windows 8 it will not be started until the user starts it. If Simple Peripheral Bus Support Library fails to start, the error details are added to Windows 8 error log. When the operating system startup is complete, the user is being notified that the SpbCx service hasn't been started.

Dependencies

Simple Peripheral Bus Support Library can't start, if the Microsoft ACPIEx Driver service is disabled or not available.

Restore Default Startup Configuration for Simple Peripheral Bus Support Library

1. Select your Windows 8 edition and update pack, and then click Download.

2. Save the Win8_SpbCx_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The SpbCx service is using the SpbCx.sys file that is located in the %WinDir%\system32\drivers folder. If the file is corrupted or deleted, you can put it back in there.