Prohibit User from manually redirecting Profile Folders
Supported on: At least Windows 2000
Registry
HKCU
Software\Microsoft\Windows\CurrentVersion\Policies\Explorer Value name: DisablePersonalDirChange
Description
Prevents users from changing the path to their profile folders. By default, a user can change the location of their individual profile folders like Documents, Music etc. by typing a new path in the Locations tab of the folder's Properties dialog box. If you enable this setting, users are unable to type a new location in the Target box.