Windows 11 introduced rounded corners across app windows, menus, and system elements as part of its modern visual redesign. While many users appreciate the softer look, others prefer sharp corners for consistency, accessibility, or performance reasons—especially on older hardware or when using classic desktop workflows.
Unlike previous visual elements that could be easily toggled, Windows 11 does not provide a direct setting to disable rounded corners through the Settings app. The rounded UI is deeply integrated into the system’s visual framework, which means changing it requires adjusting system-level behavior rather than simple personalization options.
That said, there are still practical ways to reduce or disable rounded corners in Windows 11 by using accessibility settings, visual effects controls, or advanced system tweaks. The methods below explain what is currently possible and how to achieve the closest classic-style appearance.
How to Disable Rounded Corners in Windows 11
The methods in this section focus on reducing or effectively disabling rounded corners by modifying visual effects and system behavior. These approaches do not require third-party tools and work within supported Windows configuration boundaries.
Apply the steps carefully and restart the system where instructed so changes take effect properly.
1. Disable Transparency and Visual Effects
Rounded corners are more noticeable when visual effects are enabled.
- Press Windows + I to open Settings.
- Go to Accessibility.
- Select Visual effects.
- Turn off Transparency effects.
- Turn off Animation effects.
- Close Settings.
Disabling these effects reduces the prominence of rounded corners and simplifies window rendering.
2. Enable Best Performance Visual Settings
Switching Windows to performance-focused visuals minimizes UI styling.
- Press Windows + R, type sysdm.cpl, and press Enter.
- Open the Advanced tab.
- Under Performance, click Settings.
- Select Adjust for best performance.
- Click Apply, then OK.
- Restart the computer.
This setting removes many UI effects, resulting in sharper and more classic window behavior.
3. Use High Contrast Mode
High contrast themes override many visual styles, including rounded edges.
- Open Settings.
- Go to Accessibility.
- Select Contrast themes.
- Choose a contrast theme and click Apply.
- Confirm the change.
High contrast mode forces Windows to use simpler UI elements with reduced rounding.
4. Disable Rounded Corners via Registry (Limited Effect)
Some builds of Windows 11 respond to registry-based UI adjustments.
- Press Windows + R, type regedit, and press Enter.
- Navigate to
HKEY_CURRENT_USER\Software\Microsoft\Windows\DWM - Right-click in the right pane and select New > DWORD (32-bit) Value.
- Name the value EnableRoundedCorners.
- Double-click it and set Value data to 0.
- Click OK and restart the system.
This method may reduce rounding on certain elements, but results vary by Windows version.
5. Use Tablet or Compatibility-Oriented Display Settings
Some UI styles change depending on interaction mode.
- Open Settings.
- Go to System.
- Select Tablet.
- Review tablet-related behavior settings.
- Adjust interaction preferences if available.
While this does not fully disable rounded corners, it can alter how window frames are rendered.
6. Keep Windows Updated or Roll Back Visual Changes
UI behavior can change between Windows updates.
- Open Settings and go to Windows Update.
- Review recent updates.
- If the issue started after an update, use Recovery options to roll back.
- Restart the system after changes.
Some updates adjust UI rendering, which may affect corner styling.
Final Thoughts
Windows 11 does not currently offer an official, one-click option to fully disable rounded corners. The design is part of the core visual identity of the operating system. However, by reducing visual effects, enabling performance-focused settings, or using high contrast themes, you can significantly minimize the rounded appearance.
