To tile windows, the user selects them in the taskbar and uses the context menu choice "Tile Vertically" or "Tile Horizontally". Choosing "Tile Vertically" will cause the windows to tile horizontally but take on a vertical shape, while choosing "Tile Horizontally" will cause the windows to tile vertically but take on a horizontal shape. These options were later changed in Windows Vista to "Show Windows Side by Side" and "Show Windows Stacked", respectively. Windows 7 adds the ability to drag windows to either side of the screen to create a simple side-by-side tiled layout, or to the top of the screen to maximize.