If you’ve purchased a valid Windows 10 Pro product key and you wish to upgrade your standard version of Windows 10 to Professional, here are the instructions:

  1. Right Click on the Start Button and choose System from the menu which pops up
    windows-10-system
  2. On the Windows that pops up scroll down to Windows Activation and click on Change Product Key
    change-product-key
  3. Enter your Windows 10 Professional Product Key.  The Cancel button will change and allow you to continue to upgrade your Windows 10 version once you’ve entered in a valid Windows 10 Pro product key.
    enter-windows-product-key
  4. Your computer will restart after installing the new Window 10 Pro features.