How To Disable Rounded Corners In Windows 11 Jun 2026

Because rounded corners are hard-coded into the Desktop Window Manager (DWM), community-made tools are often the most effective solution. How to disable rounded corners in Windows 11? - Super User

These tools are the most effective ways to force square corners without manually editing system files.

Navigate to: HKEY_CURRENT_USER\Software\Microsoft\Windows\DWM

Before modifying system UI elements, it is always good practice to create a . how to disable rounded corners in windows 11

While Windows 11 does not have a single "off" switch for its modern rounded aesthetic, several methods can force the operating system to revert to sharp, square corners. Method 1: Use Accessibility High Contrast Mode

A Registry tweak can sometimes disable the staging buffer responsible for rendering modern frame effects, leading to sharper edges. Press , type regedit , and hit Enter.

Before you implement any of the above, understand the trade-offs: Because rounded corners are hard-coded into the Desktop

: A powerful tool that restores many Windows 10 features.

Most of these methods (except for Edge flags) rely on modifying or hooking into the Desktop Window Manager (DWM). Use caution and back up your data before using third-party system modifiers.

The question is not why you would disable rounded corners. The question is how , given Microsoft’s active resistance to reverting this change. Press , type regedit , and hit Enter

Allows you to keep the Windows 10 taskbar if you prefer it; highly customizable. Cons: Heavier installation than simple patchers.

Alternatively, go to . Select a theme (e.g., "Aquatic" or "Dusk") and click Apply .

Right-click the taskbar → → Other → Check "Disable rounded corners for application windows" . ⌨️ Registry Editor Method