Split your screen by dragging windows to the edges

The fastest way to divide your screen is to grab a window by its title bar and drag it to one side until it snaps into place. On Windows 10 and 11, drag a window to the left edge and it will automatically fill the left half of your screen. Drag another window to the right edge and it fills the right half. On macOS, hold the green full-screen button in the top-left corner of a window, then select which side you want it to occupy.

This snap feature works because your operating system recognizes when a window reaches the edge and automatically resizes it to take up exactly half the screen. You do not have to be perfectly precise—get the window close to the edge and the snap zone will set up. Release the mouse and the window locks into place, leaving the other half of your screen ready for a second window.

If snapping does not work, your graphics driver may need an update, or the snap feature may be turned off in your system settings. On Windows, go to Settings > System > Multitasking and make sure "Snap windows" is toggled on. On macOS, the feature is called Split View and is found in System Preferences > Mission Control.

Key Takeaways

  • Drag a window to the left or right edge of your screen to snap it into a half-screen view on Windows 10, 11, and macOS.
  • Windows allows you to snap up to four windows at once by dragging them to the corners, creating a 2×2 grid layout.
  • macOS Split View locks two windows side-by-side and prevents you from resizing them independently while in that mode.
  • If snapping is not working, check your system settings to confirm the feature is enabled and your graphics driver is current.
  • Third-party window managers like Rectangle (macOS) or PowerToys (Windows) offer more layout options than the built-in snap feature.

Use Windows Snap Layouts for four-window grids

Windows 11 introduced Snap Layouts, which let you divide your screen into more than two sections at once. Hover your mouse over the maximize button (the square icon in the top-right corner of any window) and a menu appears showing different layout options: two columns, three columns, a grid of four, or other arrangements. Click the layout you want and the window fills that section. Then click the empty sections to assign other open windows to them.

This is faster than dragging four windows individually because the system handles all the resizing for you. Each window stays in its assigned section and cannot accidentally overlap the others. If you want to return to full-screen mode, double-click the title bar of any window and it expands to fill the entire screen.

Windows 10 does not have Snap Layouts, but it does support snapping to the four corners. Drag a window to the top-left corner and it fills that quarter of the screen. Drag another to the top-right, and so on. This gives you a 2×2 grid without the menu interface.

Resize windows manually if you need unequal sections

Snapping divides your screen into equal parts, but sometimes you need one window larger than another. After snapping two windows side-by-side, position your mouse on the vertical line between them until the cursor changes to a resize arrow (a double-headed line). Click and drag left or right to move the divider and make one window wider and the other narrower.

This manual resizing works the same way on Windows and macOS. You can make the division 30-70, 20-80, or any split you prefer. The windows stay in their snapped positions and do not overlap, so you can work in both at once without one covering the other.

If you find yourself using the same custom layout every day, consider a third-party window manager. Rectangle (free, macOS) and PowerToys (free, Windows) let you save custom layouts and restore them with a keyboard shortcut, which is much faster than manually resizing every time you start work.

Use virtual desktops to organize windows by task

If you have more than four windows open at once, virtual desktops let you create separate workspaces instead of cramming everything onto one screen. On Windows, press Windows key + Tab to open the Task View, then click "New desktop" in the top-left. On macOS, swipe up with four fingers to open Mission Control, then click the "+" button in the top-right to add a new desktop.

Each virtual desktop is a completely separate screen. You can snap windows on Desktop 1, snap different windows on Desktop 2, and switch between them without closing anything. This keeps your screen uncluttered and lets you focus on one task at a time. Switch between desktops by pressing Windows key + Right Arrow (Windows) or Control + Right Arrow (macOS).

Virtual desktops are especially useful if you work with many programs at once—for example, keeping email and chat on one desktop, spreadsheets on another, and design software on a third. You can see all your open windows at a glance in Task View or Mission Control, and jump to whichever desktop you need.

Arrange windows in a cascade if you need to see all of them at once

Cascading stacks all your open windows on top of each other, offset so you can see the title bar of each one. On Windows, right-click the taskbar and select "Cascade windows." On macOS, this feature is not built in, but you can use the Window menu in most applications to arrange windows, or use a third-party tool like Magnet or Rectangle.

Cascading is useful when you have many windows open and want to see which ones are running without taking up the full screen. Click any title bar to bring that window to the front. This is less efficient than snapping or virtual desktops for active work, but it is a quick way to find a window you forgot about.

Frequently Asked Questions

Can I snap more than two windows on a Mac?

macOS Split View officially supports only two windows side-by-side. To use more windows at once, create virtual desktops and snap two windows on each one, or use a third-party window manager like Rectangle or Magnet, which offer more layout options than the built-in feature.

What if my snapped windows keep unsnapping?

This usually happens if your graphics driver is outdated or if you are dragging windows too slowly. Update your graphics driver through Device Manager (Windows) or System Preferences (macOS). If the problem persists, disable and re-enable the snap feature in your system settings, or restart your computer.

Can I save a window layout so it opens the same way every time?

Built-in snap features do not save layouts automatically, but third-party tools do. Rectangle (macOS) and PowerToys (Windows) let you assign keyboard shortcuts to custom layouts, so you can restore your preferred arrangement with a single keystroke every time you log in.

Does splitting my screen slow down my computer?

No. Your computer uses the same amount of processing power whether windows are snapped or overlapping. The only factor that affects speed is how many programs are running, not how they are arranged on screen.

Can I snap windows on a laptop with a small screen?

Yes, but snapping works best on screens 15 inches or larger. On smaller screens, you may find that snapped windows are too narrow to use comfortably. Virtual desktops are often a better choice for laptops because they let you switch between full-screen windows without resizing.