Megasas Service Defaults in Windows 7

MEGASAS RAID Controller Driver for Windows 7 for x86 by LSI Corporation.

Default Settings

Startup type: Manual
Display name:Megasas
Service name:megasas
Service type:kernel
Error control:normal
Group:SCSI Miniport
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\megasas

Default Behavior

Megasas is a kernel device driver. In Windows 7 it won't be started if the user doesn't start it. If Megasas fails to start, Windows 7 attempts to write the failure details into Event Log. Then Windows 7 startup should proceed and the user should be notified that the megasas service is not running because of the error.

Restore Default Startup Configuration of Megasas

1. Run the Command Prompt as an administrator.

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

sc config megasas start= demand

3. Close the command window and restart the computer.

The megasas service is using the megasas.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 7 installation media.