Note: All screenshots in all tutorials have click to zoom feature. Click after the page load is complete and a border appears around them.
On the Windows 7 desktop, Shift + right click:
In Windows 7 Explorer, right-click on any item:
In the keyboard there is a right click key too! Its situated between alt and ctrl key (generally on the right side of the space bar). You can use plain right click or Shift right click key from the keyboard. In case of Shift right click; the underlined words in the menu will work as shortcuts from keyboard.
For example, in the above screenshot, if you want the picture to set as Windows 7 background, just press B (underlined) from the keyboard.