Sdbus Service Defaults in Windows 8

SecureDigital Bus Driver by Microsoft Corporation.

Default Settings

Startup type: Manual
Display name:Sdbus
Service name:sdbus
Service type:kernel
Error control:normal
Group:System Bus Extender
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\sdbus

Default Behavior

The Sdbus service is a kernel device driver. In Windows 8 it will not be started until the user starts it. If Sdbus 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 sdbus service hasn't been started.

Restore Default Startup Configuration of Sdbus

1. Run the Command Prompt as an administrator.

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

sc config sdbus start= demand

3. Close the command window and restart the computer.

The sdbus service is using the sdbus.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 8 installation media.