Microsoft System Management BIOS Driver (mssmbios) Service Defaults in Windows 8

System Management BIOS Driver by Microsoft Corporation.

Default Settings

Startup type:System
Display name:Microsoft System Management BIOS Driver
Service name:mssmbios
Service type:kernel
Error control:normal
Path:%SystemRoot%\System32\drivers\mssmbios.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\mssmbios

Default Behavior

The Microsoft System Management BIOS Driver service is a kernel device driver. In Windows 8 it is being loaded and initialized at Kernel initialization. If Microsoft System Management BIOS Driver 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 mssmbios service hasn't been started.

Restore Default Startup Configuration for Microsoft System Management BIOS Driver

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

2. Save the Win8_mssmbios_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The mssmbios service is using the mssmbios.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.