Configuration Backup change Default User Profile Location

Hi ,

When i back up the Configuration from my Terminalserver i get the following Error:

Warning] From: VBDA@xxxxxx "xxxxxx[/CONFIGURATION]" Time: 12.08.2014 20:12:49
Cannot locate directory for 'Default User' profile.
(tried: "C:\Users\Default User")
You can supply the location by setting OB2NTDEFUSERPATH.
Specify full path or set it to empty to disable this warning.

This is right because the Profiles are located on other Drive Letter.

How can i change the default location or how can i fix this!

Thanks for your help.

BR

Mario