Keyboard Shortcuts for Committed Mouse Abolitionists. Let’s kick off this power-user party with keyboard shortcuts—tricks every enthusiast should memorize when mastering a new OS. We’re confident the following time-saving keystrokes will save you precious neural processing cycles, and make your mouse jealous with neglect. Alt + P In Windows Explorer, this shortcut activates a preview pane of your selected file, be it an image, sound, or video document. This panel is great for previewing images in your photos directory, obviating the need for fancier third-party software. Windows + Up and Windows + Down If a window isn’t maximized, pressing the Windows + Up arrow key willmake it fill your entire screen. Windows + Down arrow will minimize that active window. Windows + Shift + Up and Windows + Shift + Down Hitting these three keys will vertically stretch an active window tothe maximum desktop height (the width of the window, however, will staythe same). Pressing Windows + Shift+ ...