What the Print Screen key does

The Print Screen key (labeled PrtScn, Print Scrn, or similar) captures whatever is on your monitor and stores it in your computer's clipboard — a temporary holding area for copied content. Pressing it does not print anything to paper. On Windows, it is usually in the top-right area of your keyboard. On Mac, there is no Print Screen key; instead you use keyboard shortcuts that do the same job.

Once the screenshot is in your clipboard, you can paste it into an email, document, image editor, or messaging app by pressing Ctrl+V (Windows) or Command+V (Mac). If you want to save it as a file instead of pasting it, you will need to use your operating system's built-in screenshot tool rather than the Print Screen key alone.

Key Takeaways

  • On Windows, pressing Print Screen copies the entire screen to your clipboard; use Ctrl+V to paste it into a document or app.
  • On Windows 11 and 10, pressing Windows key + Shift + S opens a tool that lets you select just part of the screen before saving it as a file.
  • On Mac, press Command+Shift+3 to capture the whole screen or Command+Shift+4 to select a portion; the file saves directly to your desktop.
  • If Print Screen does not work, check that no full-screen app (like a game or video player) is blocking it, or try your keyboard's function key.

Taking a full-screen screenshot on Windows

Press the Print Screen key once. Your entire screen is now copied to the clipboard. You will not see a visual confirmation — the screen will not flash or change. Open the app where you want to paste it (Notepad, Word, Gmail, Slack, etc.) and press Ctrl+V. The screenshot appears as an image you can then edit, resize, or send.

If you want to save the screenshot as a file instead of pasting it, use the Snipping Tool or Screenshot tool built into Windows. On Windows 11 and Windows 10, press Windows key + Shift + S. Your screen will dim slightly and your cursor will change to a crosshair. Click and drag to select the area you want to capture. When you release the mouse, a small menu appears at the bottom of the screen with options to save, copy, or edit the screenshot.

Taking a full-screen screenshot on Mac

Press Command + Shift + 3 to capture your entire screen. You will hear a camera shutter sound (unless your Mac is muted), and the screenshot saves automatically to your desktop as a file named "Screenshot [date] at [time].png". You can then open it, move it, or attach it to an email.

If you want to capture only part of the screen, press Command + Shift + 4 instead. Your cursor becomes a crosshair. Click and drag to select the area you want. When you release, the screenshot saves to your desktop the same way. If you change your mind while selecting, press Escape before releasing the mouse and nothing will be saved.

Capturing a single window on Mac

Press Command + Shift + 4, then press the spacebar. Your cursor becomes a camera icon. Click the window you want to capture — just the window itself, not the entire screen — and it saves to your desktop. This is useful when you want to show someone a single app window without revealing other open windows or your desktop background.

You can also use Command + Shift + 5 to open the Screenshot app directly, which shows you a preview of what you are about to capture and gives you more options for where to save the file. This method is often easier than remembering the spacebar trick, especially if you take screenshots regularly.

When Print Screen does not work

If pressing Print Screen does nothing, the most common reason is that a full-screen app is running — a video game, video player, or presentation software may block the Print Screen key. Close or minimize that app and try again.

On some laptops, the Print Screen key shares space with another function and requires you to hold the Fn key at the same time. Try pressing Fn + Print Screen. If your keyboard has a Function Lock key (often labeled Fn Lock), make sure it is not turned on, as that can reverse which function is the default. On Mac, if Command+Shift+3 or Command+Shift+4 does not work, check that you are not in a full-screen app or a restricted environment (some corporate networks or kiosk setups block screenshots). You can also open the Screenshot app directly by pressing Command+Shift+5, which gives you more control over what you capture and where it saves.

Editing and saving screenshots

On Windows 11 and 10, after you use Windows key + Shift + S to select an area, a notification appears at the bottom right of your screen. Click it to open the screenshot in the Snips & Sketch app, where you can draw on it, crop it, or add text before saving. If you do not click the notification, the screenshot stays in your clipboard and you can paste it into any app.

On Mac, screenshots save to your desktop automatically, but you can change where they go. Open the Screenshot app (Command+Shift+5), click Options at the bottom, and choose a different location — your Documents folder, Downloads, or any other folder. You can also choose to save to the clipboard instead of a file, which works the same way as Windows.

Frequently Asked Questions

Does Print Screen work in all apps?

Print Screen works in most apps, but some full-screen programs — games, video players, streaming apps — may block it for copyright protection. If it does not work, try using your operating system's built-in screenshot tool instead (Windows key + Shift + S on Windows, or Command+Shift+3 or Command+Shift+4 on Mac).

Where does my screenshot go after I press Print Screen?

It goes into your clipboard, a temporary holding area. You must paste it into an app (Ctrl+V or Command+V) to see it or save it. If you want it to save as a file automatically, use Windows key + Shift + S on Windows or Command+Shift+3 on Mac instead.

Can I take a screenshot of just one window?

Yes. On Windows, use Windows key + Shift + S and select the window area you want. On Mac, press Command+Shift+4, then press spacebar, and click the window. Both methods let you capture a single window without the rest of your screen.

What file format do screenshots save in?

On Mac, screenshots save as PNG files by default. On Windows, when you use the Snipping Tool or Screenshot tool, they save as PNG. If you paste a Print Screen capture into an app like Word or Paint, you can save it in whatever format that app supports (PNG, JPG, PDF, etc.).

Can I take a screenshot of my entire screen if I have multiple monitors?

Yes. On Windows, Print Screen captures all connected monitors at once. On Mac, Command+Shift+3 captures all screens. If you want to capture only one monitor, use the selection tool (Windows key + Shift + S on Windows, or Command+Shift+4 on Mac) and select just the area you need.