Win11 Toggle Rounded Corners is a utility designed to disable or enable rounded window corners on Windows 11. This tool provides a straightforward solution for users seeking to customize their desktop experience by reverting to traditional rectangular window corners.
Key Features:
Simple toggle functionality to switch between rounded and rectangular window corners.
Requires administrator privileges for installation and execution.
Available as both an installer and a standalone portable executable, offering flexibility for different user needs.
Built using Meson, ensuring compatibility and performance across Windows 11 systems.
Lightweight design with minimal system resource usage.
Audience & Benefit:
Ideal for Windows 11 users who prefer a more traditional or customized desktop interface. This utility allows users to quickly adjust window corner styling without unnecessary complexity, giving them control over their visual experience. It is particularly beneficial for those who find rounded corners disruptive or wish to maintain consistency with older system aesthetics.
The software can be installed via winget, ensuring seamless integration into your Windows environment.
README
Win11 Toggle Rounded Corners
A simple utility to disable rounded window corners on Windows 11
Download
An installer as well as the standalone binary for portable use can be downloaded here.
Windows 11 on x64 only. Some Anti-Virus/EDR products may block access to dwm.exe.
Usage
The program requires administrator privileges and asks for them itself, so you get the usual UAC prompt when you start it. There is no need to open an elevated terminal first.
win11-toggle-rounded-corners --disable # square corners
win11-toggle-rounded-corners --small # small rounding
Run it with no arguments to toggle.
The patch is applied to dwm.exe in memory and is lost whenever dwm.exe restarts (logoff, reboot, or a crash).
The installer re-applies it with a logon task, so it persists; the portable binary is one shot.
Reverting
How to undo the patch depends on how you installed it:
Portable: Run the binary again with --enable, or just reboot.
Installer: Uninstall it from Settings → Apps. This removes the scheduled task that re-applies the patch at every logon. Your current session will still show square corners until you reboot; after the reboot nothing re-applies the patch and rounded corners return on their own.
If a leftover task is still squaring corners after uninstalling, you can remove it manually from an elevated Command Prompt:
