Root Report Folder
The root report folder is a report folder in which all other reporting objects reside.
The root report folder has the well-known report identifier of '3f836181-2109-4f5b-a1cf-b7aa8d14c212'.
To view the properties of the root report folder, right click the Browse Reports item and click properties. This will display the general settings. Only the security settings of the root report folder can be modified.