How To Disable Rounded Corners In Windows 11 Guide

The question is not why you would disable rounded corners. The question is how , given Microsoft’s active resistance to reverting this change. Unlike previous Windows versions, Windows 11 does not expose any native setting—not in Registry, not in Group Policy, not in the Settings app—to globally disable rounded corners. Microsoft hard-coded the corner rendering into the new win32u.dll and the DWM (Desktop Window Manager) composition pipeline. Rounded corners are applied at the window frame level, before your application even gets a chance to render its client area.

Just keep a system restore point handy.

For the majority of users, the pragmatic path is acceptance. For the rest of you—the corner-cutters, the pixel purists, the window-tilers—the hacks above remain your only weapons. how to disable rounded corners in windows 11

If you simply prefer the visual sharpness of Windows 10, consider whether the constant maintenance and occasional breakage are worth the aesthetic trade-off. The rounded corners are not going away. Microsoft has explicitly stated they consider the soft geometry “core to the Windows 11 brand identity.” The question is not why you would disable rounded corners