How to Split Screen on Windows: Shortcuts, Snap Layouts & Fixes

The shortcut that does most of the work

Dragging a window to the edge of the screen works, and it’s what most people do. It’s also fiddly: you have to grab the title bar, aim at an edge you can’t quite see, and hope it snaps rather than maximising.

Windows + Left and Windows + Right do the same job with no aiming at all. Press either and the focused window takes that half immediately. Windows then dims the background and shows thumbnails of everything else you have open, so you click one to fill the other side and you’re done.

Two extras that make it worth committing to memory. Pressing Windows + Up after snapping left sends that window to the top-left quarter, which is how you build a four-window grid without touching the mouse. And pressing the same arrow again moves a snapped window across to the next monitor rather than cycling it in place.

Snap Layouts, if you’re on Windows 11

This is the genuinely new thing in Windows 11 and the reason to stop dragging windows about, yet plenty of people never discover it because it’s hidden behind a hover rather than a click.

Hover your mouse over the maximise button — the square in the top-right of any window, between minimise and close — and hold it there for a second. A small grid of layout options drops down. Click the zone you want and the window goes there; Windows then walks you through filling the remaining zones.

The layouts on offer depend on your screen size. A standard laptop display gets four options; a wide monitor gets six, including a three-column layout that’s excellent for code, documentation and a browser at once. On an ultrawide it’s the single most useful feature Windows 11 added.

Snap Groups: the part that saves real time

Once you’ve snapped two windows together on Windows 11, Windows quietly remembers them as a pair.

Hover that app’s icon in the taskbar and you’ll see a thumbnail of the group alongside the individual window. Click it and both windows restore together, in the same positions. Minimise one and both go. It means a working arrangement — say a spreadsheet beside the email you’re pulling numbers from — survives you going off to do something else.

Nothing needs enabling for this. It happens automatically whenever you snap two windows, and it’s the feature people are most surprised by when they find out it’s been there all along.

Adjusting the split

A 50/50 split is rarely what you actually want. A browser and a notes app don’t deserve equal space.

Hover over the divider between two snapped windows until the cursor becomes a double arrow, then drag. Both windows resize simultaneously rather than one overlapping the other, and Windows remembers the ratio for the next time you snap those two.

Windows 11 also offers preset uneven layouts — the 70/30 option in the Snap Layouts grid is designed for exactly this, with a main working window and a reference panel beside it. If you’re forever dragging the divider to roughly the same place, use the preset instead.

When snapping stops working

Almost always one setting, and it gets switched off more often than you’d expect — some third-party ‘performance optimiser’ utilities disable it as a supposed tweak.

Go to Settings › System › Multitasking and confirm Snap windows is on. Expand it and you’ll find the individual behaviours underneath: whether dragging to the edge snaps, whether the layout picker appears on hover, and whether Snap Assist suggests the second window. If snapping half works — the shortcut does something but no thumbnails appear — it’s one of those sub-options rather than the master switch.

Two other causes worth ruling out. A maximised window sometimes won’t snap until you restore it down first. And inside remote desktop sessions or virtual machines, the Windows key combination is often captured by the host, so the guest never receives it — drag to the edge instead.

Splitting across two monitors

With more than one display the shortcuts behave differently, and it catches people out constantly.

Press Windows + Right on a window already snapped to the right of your primary screen and it doesn’t stay put — it jumps to the left half of your second monitor. Keep pressing and it walks across every half of every display in order. That’s the intended behaviour and it’s genuinely quick once you expect it, but if you were trying to nudge a window it feels broken.

To move a window to another monitor without snapping it at all, use Windows + Shift + Left/Right. That relocates it while keeping its current size and position, which is what you usually want when you’re just tidying up. Snap Groups also work per-monitor, so you can have a different pair remembered on each screen.

Reading side by side in one app

Sometimes you don’t want two applications — you want two parts of the same document, and snapping two copies of the app is the clumsy way to do it.

Word, Excel and most browsers can split internally. In Word, the View tab has a Split button that divides the document into two independently scrolling panes. Excel has the same under View, plus Freeze Panes, which keeps your header row visible as you scroll — usually a better answer than splitting at all.

Browsers handle it with tab groups or, in Edge, a built-in split-screen button in the toolbar that puts two tabs side by side inside one window. That keeps a single taskbar entry instead of two, which matters if you already have a lot open.

Three or more windows

Two is the common case, but Windows handles more.

Four in a grid works on both Windows 10 and 11: snap left, press Windows + Up to send it to the top-left quarter, then repeat for the other three corners. On a large monitor this is genuinely usable. On a 13-inch laptop it produces four windows too small to read.

Three columns is Windows 11 only, via Snap Layouts, and needs a reasonably wide screen for the option to appear at all. If you don’t see it in the grid, your display isn’t wide enough — Windows hides layouts it judges impractical for your resolution.

Beyond that, more windows stop helping. If you genuinely need six things visible, the answer is virtual desktops rather than smaller tiles — Windows + Ctrl + D creates one, and Windows + Ctrl + Left/Right moves between them.

Frequently asked questions