MegaSR - Windows Vista Service
LSI MegaRAID Software RAID Driver by LSI Corporation, Inc..
This service also exists in Windows 10, 11, 7 and 8.
Startup Type
Since MegaSR is a kernel mode driver, its startup might be configured depending on installed hardware. Changing its startup configuration might cause hardware issues. In the table below you can see how it is configured on my system, but your default settings might differ from mine.
| Windows Vista edition | without SP | SP1 | SP2 |
|---|---|---|---|
| Starter | not exists | not exists | Disabled |
| Home Basic | not exists | not exists | Disabled |
| Home Premium | not exists | not exists | Disabled |
| Business | not exists | not exists | Disabled |
| Ultimate | not exists | not exists | Disabled |
Default Properties
| Display name: | MegaSR |
| Service name: | MegaSR |
| Type: | kernel |
| Path: | %WinDir%\system32\drivers\megasr.sys |
| Error control: | normal |
| Group: | SCSI Miniport |
Default Behavior
The MegaSR service is a kernel mode driver. If MegaSR fails to start, the error is recorded into the Event Log. Windows Vista startup proceeds, but a message box is displayed informing you that the MegaSR service has failed to start.
Restore Default Startup Type of MegaSR
Automated Restore
1. Select your Windows Vista edition, and then click on the Download button below.
2. Save the RestoreMegaSRWindowsVista.bat file to any folder on your hard drive.
3. Right-click the downloaded batch file and select Run as administrator.
4. Restart the computer to save changes.
Note. Make sure that the megasr.sys file exists in the %WinDir%\system32\drivers folder. If this file is missing you can try to restore it from your Windows Vista installation media.