To close the rounded window design of Chrome on Windows 11, there are three main methods: 1. Modify the Chrome startup parameters and add --disable-features=UseOzonePlatform --ozone-platform-hint=auto at the end of the shortcut target bar; 2. Use third-party tools such as Rounder Window to force the window style, and check "Remove rounded corners"; 3. Modify the registry, create a new DWORD value DWM_WINDOW_CORNER_NONE under the DWM key and set it to 1. The most direct and effective one is the startup parameter method. Third-party tools are suitable for temporary adjustments, while the registry method is risky and may not necessarily be effective for Chrome. It is recommended to give priority to trying the first two methods.

Chrome's rounded windows look quite harmonious on Windows 11, but if you prefer right-angle borders, or just want to unify the appearance of all apps, you might find this design a bit annoying. In fact, there are several ways to solve this problem, some are temporary solutions, while others are relatively stable.

Modify Chrome startup parameters (most commonly used methods)

The Chrome browser itself does not provide the option to turn off rounded corners, but it supports tweaking some hidden features by launching parameters. You can use this to disable the rounded corner effect.

• Find Chrome's shortcut on the desktop, right-click → Properties → Add this paragraph at the end of the "Target" column:

 --disable-features=UseOzonePlatform --ozone-platform-hint=auto

• Then click "Apply" and use this shortcut to open the browser to see the effect.

Note: Different versions of Chrome may have different levels of support for this parameter and may fail after update.

Use third-party tools to force the window style

If you don't want to mess with command line parameters, you can also use some external tools to unify the appearance of all windows, including Chrome.

• For example, a widget like Rounder Window can help you change all windows to right angles, or customize the rounded corner radius.
• After installation and operation, you usually only need to check the option "Remove rounded corners" to take effect.

The advantage of this type of tool is that it does not require changes to the system files or registry, and it is easy to restore if there is any problem.

Modify the registry (advanced user)

If you are familiar with Windows registry operations, you can also try to affect the behavior of the window rounded corners of the entire system by modifying the registry. However, this method may not be effective for Chrome, because it is based on Chromium's own rendering UI.

• Open the Registry Editor (regedit) and locate:

 HKEY_CURRENT_USER\Software\Microsoft\Windows\DWM

• Create a new DWORD value, named DWM_WINDOW_CORNER_NONE , and set the value to 1 .
• Then restart the Explorer or computer to see if it is effective.

?? Reminder: There are certain risks in modifying the registry, and it is recommended to back up the relevant items first.

Among these methods, the most direct one is to modify the Chrome startup parameters, followed by using third-party tools. If you just want to change your style occasionally, it is recommended to use lightweight tools like Rounder Window; if you pursue long-term stability, you can try to bring the specified parameters every time you start Chrome.

Basically these are the methods. Although Chrome does not have built-in switches, there are always several ways to detour.

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