The quickest way to full screen depends on what you're doing

Most programs on Windows and Mac let you press F11 to enter full screen mode. On a Mac, you can also swipe up with four fingers, click the green button in the top-left corner of the window, or press Control + Command + F. On Windows, some programs use Alt + Enter instead. The method that works depends on whether you're watching video, playing a game, or using a web browser — each one responds to different keyboard shortcuts.

If a keyboard shortcut doesn't work, your program may have a full screen button in its menu. Look for a square icon or a menu option labeled "Full Screen" or "Theater Mode." Right-clicking on the window sometimes reveals a context menu with full screen options too.

Key Takeaways

  • Press F11 in most web browsers and applications to toggle full screen mode on and off.
  • On Windows, Alt + Enter works for many games and some video players instead of F11.
  • Mac users can press Control + Command + F, use the green button in the window's top-left corner, or swipe up with four fingers to enter full screen.
  • If keyboard shortcuts don't work, look for a full screen button in the process's menu or right-click the window to find the option.
  • Press the same key again or press Escape to exit full screen mode and return to the normal window.

Full screen in web browsers

F11 is the standard shortcut for full screen in Chrome, Firefox, Edge, and Safari. When you press it, the address bar, tabs, and taskbar disappear, leaving only the webpage or video on your screen. Press F11 again to bring them back.

Some video players within browsers use a different button. Look for a small square icon in the bottom-right corner of the video player — click it to expand the video to full screen. This works on YouTube, Netflix, and most streaming sites. Press Escape or click the same button again to exit.

If you want to hide just the browser interface but keep the taskbar visible, try F12 on some browsers, though this usually opens the developer tools instead. The cleanest approach is F11 for a truly full screen experience.

Full screen for games on Windows

Many games respond to Alt + Enter to toggle between windowed and full screen mode. This works for older games and some newer ones, though modern games often have their own full screen setting in the graphics or display menu.

Check your game's settings menu first — look for "Display," "Graphics," or "Video" options. Most games let you choose between Windowed, Borderless Windowed, and Full Screen. Borderless Windowed mode gives you a full screen look while letting you alt-tab out more smoothly. Full Screen mode usually performs better but can make alt-tabbing slower.

If Alt + Enter doesn't work and the settings menu has no full screen option, the game may be locked to windowed mode. Try right-clicking the game's .exe file, selecting Properties, clicking the Compatibility tab, and checking "Run this program in full screen mode."

Full screen on Mac

The easiest method on Mac is to click the green button in the top-left corner of any window. This enters full screen mode for that process. Click it again to exit. You can also press Control + Command + F to toggle full screen.

If you prefer gestures, swipe up with four fingers on your trackpad to see all open windows, then swipe down with four fingers to return. Some users find the keyboard shortcut faster than hunting for the button.

To exit full screen on Mac, move your cursor to the top of the screen — the menu bar will reappear. Click the green button again, or press Control + Command + F.

Exiting full screen mode

The easiest way to exit full screen is to press the same key you used to enter it. If you pressed F11, press F11 again. If you used Alt + Enter, press Alt + Enter again. On Mac, press Control + Command + F or click the green button.

You can also press Escape to exit full screen in most browsers and applications. This works across Windows and Mac. If Escape doesn't work, try moving your mouse to the top or bottom of the screen — a menu bar or control panel often appears, with a button to exit full screen.

When full screen isn't working

If F11 opens a menu instead of full screen, your keyboard may have function keys locked. On Windows, hold Fn and press F11 together. On Mac, check System Preferences under Keyboard to see if "Use F1, F2, etc. as standard function keys" is enabled.

Some applications disable full screen mode for security or design reasons. Older programs, specialized software, and some corporate applications may not support it. If the keyboard shortcut produces no response, check the process's menu bar — look under View, Window, or Display for a full screen option. If none exists, the program straightforward doesn't offer the feature.

If your monitor isn't displaying the full screen properly — for example, if the image is zoomed in or cut off — the problem is likely a display scaling issue rather than a full screen toggle. Check your graphics card settings or display properties to adjust resolution and scaling.

Full screen for specific tasks

For presentations, many programs have their own full screen mode separate from the window full screen. In PowerPoint, press F5 to start a presentation in full screen from the beginning, or Shift + F5 to start from the current slide. In Google Slides, click the "Present" button in the top-right corner.

For video editing or photo work, full screen mode hides the menus and toolbars, which can be useful for reviewing your work. However, you'll often want to keep some controls visible. Many creative applications let you customize what appears in full screen mode through their preferences.

For reading documents or ebooks, full screen removes distractions and gives you more space for text. Most PDF readers and ebook applications support F11 or have their own full screen button. Some also offer a "focus mode" or "reading mode" that dims the background and enlarges text without going fully full screen.

Frequently Asked Questions

Why does my game look stretched or blurry in full screen?

Your monitor's resolution may not match the game's resolution. Check your game's graphics settings and set the resolution to match your monitor's native resolution — usually listed on your monitor's box or in Windows Display Settings. Stretched images usually mean the aspect ratio is wrong; look for a 16:9 or 16:10 option depending on your screen shape.

Can I use full screen on a second monitor?

Yes, but the behavior depends on your process. Most programs full screen on whichever monitor the window is currently on. Some games may full screen on your primary monitor regardless. If you want to use full screen on a secondary monitor, drag the window to that monitor first, then press the full screen shortcut.

Does full screen mode improve performance in games?

Usually yes, slightly. Full screen mode can reduce input lag and improve frame rates because the operating system isn't rendering the desktop and other windows. Borderless Windowed mode looks full screen but performs slightly worse. The difference is often small on modern hardware, so choose whichever feels better to you.

What's the difference between full screen and maximized?

Maximized means the window fills your screen but the taskbar and window borders are still visible. Full screen hides everything except the process itself. Full screen is cleaner and uses slightly more screen space, but maximized lets you see the taskbar and switch windows more easily.

How do I full screen a video call on Zoom or Teams?

During a call, look for a full screen button in the video controls — usually a small square icon in the bottom-right corner of the screen or in the control bar. Click it to expand the active speaker's video to full screen. Press Escape to exit. You can also press Alt + Enter on some systems, though the button method is more reliable.