Arc Service Defaults in Windows 7
Adaptec RAID Storport Driver by Adaptec, Inc..
Default Settings
| Startup type: | Manual |
| Display name: | Arc |
| Service name: | arc |
| Service type: | kernel |
| Error control: | normal |
| Group: | SCSI Miniport |
| Path: | %SystemRoot%\system32\DRIVERS\arc.sys |
| Registry key: | HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\arc |
Default Behavior
Arc is a kernel device driver. In Windows 7 it won't be started if the user doesn't start it. If Arc 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 arc service is not running because of the error.
Restore Default Startup Configuration of Arc
1. Run the Command Prompt as an administrator.
2. Copy the command below, paste it into the command window and press ENTER:
sc config arc start= demand
3. Close the command window and restart the computer.
The arc service is using the arc.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.