A simple Powershell script to clean up your PATH on Windows

• Move entries to their correct target
  • Entries in the current user's PATH that are relevant for all users go to the system's PATH
  • Entries in the system's PATH that are only relevant for the current user go to the user's PATH
• Remove redundant entries
  • Duplicate entries in the current user's PATH
  • Duplicate entries in the system's PATH
  • Entries in the current user's PATH that already exist in the system's PATH
• Remove or fix broken entries
  • Try to replace C:\Program Files with C:\Program Files (x86) in the entry and visa-versa
  • Otherwise, remove them
• Shorten entries
  • Try to replace parts of the entry with another environment variable (f.e. C:\Program Files with %ProgramFiles%)
  • Normalize paths and remove redundant path separators at the end
• Sort entries
• Prepend %SystemRoot% to both PATHs so they correctly show up as a list when editing in control panel

Open PowerShell as Administrator and run:

./pathix.ps1

NOTE: Further information and instructions will be written to console.