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Fix Open-Shell Start button size and scaling

Check display scale and the custom button resource before changing unrelated menu settings. A stretched or clipped Start button can be an image-format.

Direct answer

Check display scale and the custom button resource before changing unrelated menu settings. A stretched or clipped Start button can be an image-format problem, a size-setting problem, or a difference between monitors. Establish which one changes the result.

What to do

  1. Note the resolution and display scale for each monitor in Windows Settings. Capture the incorrect button at the scale where it fails.
  2. Switch temporarily to a supplied button image. If that looks correct, investigate the custom asset dimensions and state layout before reinstalling the program.
  3. Adjust the button size controls in small steps and reopen the menu. Test pointer hover and pressed states, not only the idle image.
  4. Sign in again when display-scale changes require it, then repeat on each display. Keep a known-good size and image combination in the settings backup.

Check the result

Compare the visible image, actual click target, and menu opening position. They should remain usable even if pixel-perfect appearance differs between displays.

Limits & precautions

Release notes have included DPI-related corrections, but an old fix does not guarantee every custom image will scale well. Keep the Windows and Open-Shell version in a bug report.

Questions & answers

Should I replace Windows display scaling to fix one icon?

Test the built-in image and local button size first; display scale affects the whole desktop.

What should I include in a report?

Include monitor scale, resolution, button file dimensions, and the exact application version.

Sources & scope

Documentation checked October 30, 2026. These instructions are documentation-led, not a claim of hands-on testing on your Windows build.