1. Click Windows logo and type: Control Panel
  2. Type: advance in search box
  3. Click on View advanced system setting
  4. Click on Advanced tab and Environment Variables
  5. Click on Path in System variables section
  6. Click Edit
  7. Click New if you want to add new path or Edit if you want to edit your path.
  8. Click OK if you have done adding or editing. 
  9. That's it!!.
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