Percsas3i Service Defaults in Windows 10

MEGASAS RAID Controller Driver for Windows by Avago Technologies.

Default Settings

Startup type: Manual
Display name:Percsas3i
Service name:percsas3i
Service type:kernel
Error control:normal
Group:SCSI Miniport
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\percsas3i

Default Behavior

Percsas3i is a kernel device driver. In Windows 10 it is starting only if the user, an application or another service starts it. If Percsas3i fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the percsas3i service has failed to start due to the error.

Restore Default Startup Configuration of Percsas3i

1. Run the Command Prompt as an administrator.

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

sc config percsas3i start= demand

3. Close the command window and restart the computer.

The percsas3i service is using the percsas3i.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 10 installation media.