Percsas2i Service Defaults in Windows 10

MEGASAS RAID Controller Driver for Windows by Avago Technologies.

Default Settings

Startup type:Manual
Display name:Percsas2i
Service name:percsas2i
Service type:kernel
Error control:normal
Group:SCSI Miniport
Path:%SystemRoot%\System32\drivers\percsas2i.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\percsas2i

Default Behavior

Percsas2i is a kernel device driver. In Windows 10 it is starting only if the user, an application or another service starts it. If Percsas2i fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the percsas2i service has failed to start due to the error.

Restore Default Startup Configuration for Percsas2i

1. Select your Windows 10 edition and release, and then click Download.

2. Save the Win10_percsas2i_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The percsas2i service is using the percsas2i.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.