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Screen Resolution Looks Wrong or Blurry

Beginner Display & Graphics Applies to: Windows 7, Windows 10, Windows 11

Text looks fuzzy, icons are oversized, or the display doesn't fill the screen.

Before you start: save any open work and note down what you were doing when the problem started — that context helps if you need to search further or ask for help.
  1. Right-click the desktop > Display settings, and check that "Display resolution" matches your monitor's native resolution (usually the one marked "Recommended").
  2. If scaling looks off, adjust the "Scale" percentage on the same screen — 100%, 125%, and 150% are common starting points depending on screen size.
  3. Reinstall or update your graphics driver, since a generic driver often can't detect your monitor's correct native resolution.
  4. Try a different cable (HDMI vs DisplayPort) if the option is available — some cables and ports cap the resolution or refresh rate lower than the monitor supports.
  5. For external monitors, confirm you're not accidentally using "Duplicate" mode when you meant "Extend," which can force a lower shared resolution.
Still not fixed? Send us the details and we'll help you dig further, or browse related guides in Display & Graphics.

Frequently Asked Questions

Why would my resolution suddenly change on its own?
This most often happens after a graphics driver update, a Windows Update, or when Windows fails to correctly detect your monitor's native resolution — not usually a sign of a hardware problem.
Will changing resolution affect my saved files or settings?
No — resolution is a display setting only. It won't affect any files, and other settings will stay exactly as they were.

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You plug in an external display and Windows doesn't see it.

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