Arcsas Service Defaults in Windows 7

Adaptec SAS RAID WS03 Driver by Adaptec, Inc..

Default Settings

Startup type: Manual
Display name:Arcsas
Service name:arcsas
Service type:kernel
Error control:normal
Group:SCSI miniport
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\arcsas

Default Behavior

Arcsas is a kernel device driver. In Windows 7 it won't be started if the user doesn't start it. If Arcsas 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 arcsas service is not running because of the error.

Restore Default Startup Configuration of Arcsas

1. Run the Command Prompt as an administrator.

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

sc config arcsas start= demand

3. Close the command window and restart the computer.

The arcsas service is using the arcsas.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.