This is a keyboard sequence, so let’s understand it in order:
- Ctrl+Esc opens the Start menu. (Instead, you could use the Windows key.)
- Pressing the u key selects whichever menu item has an underlined u. In this case, we want to select the “Shut Down…” command. The “u” in “Shut Down…” is underlined, which means you can press the u key key to select it. (Note that if your menu has other options that begin with a U, such as “User Preferences,” then you’ll have to hit u more than once and then hit Enter when Shut Down is selected.)
- A dialog box labeled “Shut Down Windows” or “Turn off computer” appears. Windows remembers the last option you selected when shutting down. If “Shut down” is the highlighted option, you can press Enter to select it. If the wrong option is selected, you can change the selected option with the arrow keys before you press Enter.