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How to Change Window Border Size on Windows 11 & 10

By default, Windows 11 and 10 add an invisible border around all windows. This border helps you resize the window to whatever size you want by simply grabbing and dragging it. However, the default border size is pretty narrow making it hard to grab the edges of a window. Thankfully, you can increase the window border size in just a few steps. In this tutorial, we’ll show you the simplest way to change the border size, let’s get started.

Note: The below steps are tested to work on Windows 11 & 10

Caution: You are required to modify the registry to customize the window border size. So, back up the registry before proceeding.

Steps To Change Window Border Size

First, press Windows key + R to open the Run window.

Enter regedit in the Run window and click OK.

regedit run command to open registry editor

Navigate to the following folder in the registry editor.

Computer\HKEY_CURRENT_USER\Control Panel\Desktop\WindowMetrics

On the right panel, find the BorderWidth value, right-click on it, and select Modify.

In the Value Data field, replace -15 with a value between 0 and -750. The lower the value, the higher the border width. For example, if you set the Value Data to -100, the border width will be wider. To increase it more, lower the value to something like -150 or -200.

Click OK to save the changes.

Finally, close the Registry Editor and restart your computer. Once you restart, you will find that it’s easier to grab the window edge to resize them.

Note: Changing the border width doesn’t change the width of the actual colored border that you see when you enable the accent color on the title bars and window border option. So, don’t worry about the absurdly wide colored borders.

And there you have it! It’s that simple to change and customize the window border size to make windows easier to grab and resize.

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