Adding a directory to the PATH environment variable in Windows

Solution 1:

Option 1

After you change PATH with the GUI, close and re-open the console window.

This works because only programs started after the change will see the new PATH.

Option 2

This option only affects your current shell session, not the whole system. Execute this command in the command window you have open:

set PATH=%PATH%;C:\your\path\here\

This command appends C:\your\path\here\ to the current PATH. If your path includes spaces, you do NOT need to include quote marks.

Breaking it down:

  • set – A command that changes cmd's environment variables only for the current cmd session; other programs and the system are unaffected.
  • PATH= – Signifies that PATH is the environment variable to be temporarily changed.
  • %PATH%;C:\your\path\here\ – The %PATH% part expands to the current value of PATH, and ;C:\your\path\here\ is then concatenated to it. This becomes the new PATH.

Solution 2:

WARNING: This solution may be destructive to your PATH, and the stability of your system. As a side effect, it will merge your user and system PATH, and truncate PATH to 1024 characters. The effect of this command is irreversible. Make a backup of PATH first. See the comments for more information.

Don't blindly copy-and-paste this. Use with caution.

You can permanently add a path to PATH with the setx command:

setx /M path "%path%;C:\your\path\here\"

Remove the /M flag if you want to set the user PATH instead of the system PATH.

Notes:

  • The setx command is only available in Windows 7 and later.
  • You should run this command from an elevated command prompt.

  • If you only want to change it for the current session, use set.