One of the most noticeable design changes in Windows 11 is its modern user interface, which includes rounded corners on windows, menus, and UI elements. These rounded edges give Windows 11 a softer and more polished look compared to older versions like Windows 10.
However, not everyone prefers this design. Some users like a sharper, more classic appearance, while others may want to tweak the UI for performance or personal preference. The challenge is that Windows 11 does not provide a simple built-in toggle to enable or disable rounded corners.
In this detailed guide, you will learn how to enable or disable rounded corners in Windows 11 using different methods, including system settings, performance tweaks, registry changes, and third-party tools. Everything is explained in simple language so you can follow along easily.
What Are Rounded Corners in Windows 11
Rounded corners are part of the visual design system in Windows 11. Instead of sharp edges, windows and UI elements have slightly curved corners.
This design is part of Microsoft’s Fluent Design System, which focuses on modern aesthetics, smooth visuals, and consistency across apps.
Rounded corners appear in:
- File Explorer windows
- Settings app
- Context menus
- Dialog boxes
They are enabled by default in Windows 11.
Can You Disable Rounded Corners Directly
Unlike some UI features, Windows 11 does not offer a direct option in Settings to turn off rounded corners.
However, you can indirectly disable or reduce them using certain methods such as performance settings, registry tweaks, or third-party tools.
Method 1: Disable Rounded Corners Using Performance Settings
One of the easiest ways to reduce rounded corners is by adjusting visual effects.
Steps
- Press Windows + S and search for Performance
- Click Adjust the appearance and performance of Windows
- Select Adjust for best performance
- Click Apply and OK
What Happens
This disables many visual effects, including some UI styling elements, which may reduce or remove rounded corners in certain areas.
Note
This method also disables animations and other visual enhancements.
Method 2: Disable Rounded Corners via Registry Editor
Advanced users can use the Registry Editor to modify UI behavior.
Warning
Editing the registry incorrectly can cause system issues. Proceed carefully.
Steps
- Press Windows + R, type regedit, and press Enter
- Navigate to:
HKEY_CURRENT_USER\Software\Microsoft\Windows\DWM - Right-click and create a new DWORD (32-bit) value
- Name it UseWindowFrameStagingBuffer
- Set its value to 0
- Restart your PC
Result
This may disable rounded corners and revert to a more classic window style.
Method 3: Use High Contrast Theme
Using a high contrast theme can change UI elements, including corners.
Steps
- Open Settings
- Go to Accessibility → Contrast themes
- Select a theme and apply
Result
This may remove rounded corners and simplify the interface.
Method 4: Use Third-Party Tools
Since Windows 11 does not provide full control, third-party tools can help.
Popular tools include:
- StartAllBack
- ExplorerPatcher
These tools allow you to customize the Windows UI, including window styles.
Steps (General)
- Download a trusted customization tool
- Install it
- Navigate to UI settings
- Disable rounded corners
Important
Always download tools from official sources to avoid security risks.
Method 5: Enable Rounded Corners Again
If you have disabled rounded corners and want them back:
Steps
- Restore default performance settings
- Delete registry changes
- Disable third-party tools
- Restart your PC
This will bring back the default Windows 11 design.
Why Rounded Corners May Not Appear
Sometimes rounded corners may disappear automatically.
Common Reasons
- Using older hardware
- Graphics driver issues
- Disabled visual effects
- Running apps in compatibility mode
Fix
Update your graphics drivers and enable visual effects.
Advantages of Rounded Corners
Rounded corners improve the visual appeal of Windows 11. They make the interface look modern and consistent.
They also reduce harsh edges, making the UI more comfortable to look at for long periods.
Disadvantages of Rounded Corners
Some users find rounded corners unnecessary or distracting.
They may also slightly impact performance on low-end systems, although the difference is usually minimal.
When Should You Disable Rounded Corners
You may want to disable them if:
- You prefer a classic Windows look
- You want maximum performance
- You are using an older system
Otherwise, keeping them enabled is generally recommended.
Tips for Customizing Windows 11 UI
If you are customizing your system, consider adjusting other visual settings as well.
You can change themes, colors, transparency effects, and animations to match your preferences.
Combining these settings can give you a personalized Windows experience.
Final Thoughts
Rounded corners are a key part of the modern design in Windows 11, but not everyone prefers them. While there is no direct toggle to enable or disable them, you can use performance settings, registry tweaks, or third-party tools to customize the appearance.
If you value aesthetics, keeping rounded corners is a good choice. If you prefer performance or a classic look, disabling them may be better.
By following the methods in this guide, you can easily control how your Windows 11 interface looks and create a setup that suits your needs.
FAQs
Can I turn off rounded corners in Windows 11?
There is no direct option, but you can disable them using registry or performance settings.
Do rounded corners affect performance?
They have minimal impact, but disabling visual effects can improve performance slightly.
Are rounded corners part of all apps?
Most modern apps support them, but some older apps may not.
How do I restore rounded corners?
Revert any changes made in settings, registry, or third-party tools.
Is it safe to use third-party tools?
Yes, if you download them from trusted sources.


