So... One of my co-workers accidentally deleted the "All Systems" collection.I know I can "mimic" this collection by creating a new collection with query based membership rules ("Select * from sms_r_system).I am wondering if anyone knows how to re-create the original "All Systems" collection with the collection ID of SMS00001.If anyone has any ideas, please let me know.Thanks.

A site reset *might* help (see: http://technet.microsoft.com/en-us/library/bb681062.aspx, explanation for parameter /NODEFAULTCOLL), but that can be easily tested in a lab.

Thanks for the advice...I will try this in our test environment first and let you know how it goes.