Megasr Service Defaults in Windows 10

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

Megasr is a kernel device driver. In Windows 10 it is starting only if the user, an application or another service starts it. If Megasr fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the megasr service has failed to start due to the error.

Restore Default Startup Configuration for Megasr

1. Run the Command Prompt as an administrator.

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

sc config megasr start= demand

3. Close the command window and 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 changed, damaged or deleted, you can restore its original version from Windows 10 installation media.