Site 1:

Specifies the name and URL of a shared workspace. The name and URL appear in the Document Management pane.

Supported on: At least Windows 7
Name:

Registry HiveHKEY_CURRENT_USER
Registry Pathsoftware\policies\microsoft\office\15.0\sharepointtracking\name0
Value Namename
Value TypeREG_SZ
Default Value
URL:

Registry HiveHKEY_CURRENT_USER
Registry Pathsoftware\policies\microsoft\office\15.0\sharepointtracking\name0
Value Nameurl
Value TypeREG_SZ
Default Value

office15.admx

Administrative Templates (Computers)

Administrative Templates (Users)