Rapid Environment Editor 

Rapid Environment Editor (RapidEE) is a freeware Windows environment variables editor. It includes easy to use GUI and replaces small and inconvenient Windows edit box.

Features:

* Show environment variables and values as an editable tree

* Ability to choose variable value using File Explorer tree

* Automatically checking for invalid paths and filenames in variables

* Backup environment variables to the registry file

* Drag'n'drop support to reorder variable values

* "Portable mode" to run from removable media