Megasr Service Defaults in Windows 8

LSI MegaRAID Software RAID Driver by LSI Corporation, Inc.

Default Settings

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

Default Behavior

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

Restore Default Startup Configuration for Megasr

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

2. Save the Win8_megasr_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The megasr service is using the megasr.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.