LSI_SAS Service Defaults in Windows 8

LSI Fusion-MPT SAS Driver (StorPort) by LSI Corporation.

Default Settings

Startup type:Manual
Display name:LSI_SAS
Service name:LSI_SAS
Service type:kernel
Error control:normal
Group:SCSI Miniport
Path:%SystemRoot%\System32\drivers\lsi_sas.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LSI_SAS

Default Behavior

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

Restore Default Startup Configuration for LSI_SAS

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

2. Save the Win8_LSISAS_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The LSI_SAS service is using the lsi_sas.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.