Blurry Apps or Wrong Size on a Windows 11 Display? Fix Scaling and DPI the Right Way

Text looks fuzzy, or apps open too big or too small — often after you dock a laptop or plug in a second monitor with a different resolution.

Why: Each display has a native resolution and a recommended scale. If those are off — or an older app doesn’t redraw itself when you move it between screens — Windows stretches the image and it goes blurry.

Fix 1: Set the recommended resolution and scale

1. Go to Settings > System > Display.
2. Set Display resolution to the value marked (Recommended) — this is your panel’s native resolution; anything else looks soft.
3. Under Scale & layout, set Scale to the value marked (Recommended).
4. If you have multiple monitors, click each display box at the top first, since resolution and scale are set per monitor.

Microsoft warns that at a non-native resolution, “text won’t look as sharp and the display might be small, centered on the screen, edged with black, or stretched.”

Fix 2: Let Windows fix blurry apps

When you dock/undock or change displays, some desktop apps don’t redraw and turn blurry. Windows can correct this.

1. In the taskbar search box, type advanced scaling settings and open Fix apps that are blurry.
2. Turn on Let Windows try to fix apps so they’re not blurry.
3. Close the blurry app and reopen it on your main display to apply the fix.

Fix 3: Override DPI scaling for one stubborn app

If a specific older program is still blurry, override its scaling directly.

1. Right-click the app’s shortcut or its .exe, choose Properties.
2. Go to the Compatibility tab and click Change high DPI settings.
3. Tick Override high DPI scaling behavior and set Scaling performed by to System (or Application), then OK and relaunch the app.
4. Try System first; if the app is still blurry, switch the same setting to System (Enhanced).

FAQ

Everything was fine until I plugged my laptop into a monitor. Your laptop panel and the external monitor likely use different scale percentages. Set each one to its own (Recommended) scale in Fix 1; signing out and back in helps apps pick up the change.

Why does only one program stay blurry? It’s an older app that doesn’t support per-monitor DPI. The per-app override in Fix 3 is made for exactly that case.

Sources: Microsoft Support — Change your screen resolution and layout in Windows · Microsoft Support — Fix apps that appear blurry in Windows