However, you can more easily switch between windows.
Games running in a window won’t have exclusive access to your graphics hardware, so they won’t perform quite as well as they would in full-screen mode. Play in Windowed Mode: Games often have a windowed mode, where they render themselves in a window on your desktop.There are several ways you can make this happen: Let’s say you want to play a game but you also want to Alt+Tab and use other windows without the risk of crashes or delays while switching. How to Quickly and Safely Alt+Tab Out of a Game The game running in full-screen exclusive mode doesn’t redirect its output through the desktop’s display manager, so the desktop display manager can’t display a preview. You won’t see a preview of the game’s display area like you would for other windows. If you Alt+Tab out of it, you can hover over the game’s taskbar icon or press Alt+Tab again. You can see this in action when you have a game running in full-screen, exclusive mode. When you switch back to the game, the game has to restore itself and take control away from Windows. For a variety of reasons - especially problems with the way some games are coded - the game may encounter a problem while doing this. It has to minimize the game and start rendering the desktop again. Windows doesn’t just have to switch from one window to another when you press Alt+Tab.