I. System Properties

1. Open Environment Variables window.

1. Through Control Panel

   1. Go to Control Panel -> System (Win+Break).

   2. Go to Advanced tab (in Windows 7 select Advanced System Settings from the left panel).

      

   3. Press Environment Variables.

      

2. Using Run window

   1. Press Win+R
   2. Type the command

      1. Windows XP

         • “control sysdm.cpl,,3″
         • press Alt+N

      2. Windows 7

         • “rundll32 sysdm.cpl,EditEnvironmentVariables”
   3. Enter

2. Under User variables or System variables find Path and change.

II. Command Line

1. Use the PATH command to set the path for current session only

   path [new-path];%path%

2. Use the SETX command to change the path permanently.

   • to set path as a User variable

     setx path "%path%;[new-path]"

   • to set path as a System variable

     setx /m path "%path%;[new-path]"

     

III. Registry editor

1. Win+R -> “regedit”
2. Go to the branch

   1. To change PATH as a User variable:

      HKEY_CURRENT_USER\Environment

   2. To change PATH as a System variable:

      HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Environment

3. Change the PATH value.