Customize menu > Configure User Paths
Customize menu > Configure System Paths
Configure Paths functionality is available in two dialogs:
Paths that you use to specify locations for bitmaps, scenes, etc. are found on the Configure User Paths dialog. In addition, the latter dialog now lets you save, load, and merge path-configuration files, which makes it easier for content-creation teams to set up the same folders for all team members to use.
Paths used by 3ds Max for purposes such as loading fonts and defaults are accessible on the Configure System Paths dialog.