Cannot Complete C Drive Backup

I back up my Win 7 PC using Macrium Reflect. Problem is, since I started backing up my C drive to a NAS Raid drive (instead of another locally installed hard drive), I have been unable to complete a backup.

Checked the Macrium support forums and it appears that the error in backing up has nothing to do with the backup software and is rather a Windows issue. Issue seems to be that my VSS Service is shutting itself down due to it being "idle". As a result the Macrium cannot complete the backup. I determined the VSS Service was the issue by checking the Windows error log.

Any ideas how I can prevent this service from going into "idle" mode?

I actually did that yesterday. Should have specified that. Still doesn't work

Volume shadow copy
Windows backup - (probably not relevant to your problem)
Microsoft software shadow copy provider

should be set to Manual

Also see
Event ID 13
if you haven't already

Here is Disk Mgmt:



I also checked Event ID 13 and all 3 services appear to be runing and have the proper settings. The only thing that did not work for me was the "Create Shadow" command via the command prompt. I kept getting a syntax error.

One final thing. Here is the formal error message from the Event Log:

Event ID is 8224

"The VSS service is shutting down due to idle timeout. "

WHS may come along with some specific comments on any NAS Raid drive issues with Macrium.