How do I change the window border size on Windows 11?
- Press Windows +R to open the Run dialog box.
- Type regedit and click OK to open Registry Editor.
- Navigate to this path:
Computer\HKEY_CURRENT_USER\Control Panel\Desktop\WindowMetrics- Locate the Border Width option from the right pane and double-click to open it.
- Change the Value data to any value between 0 to -750, then click OK.
- Now locate PaddedBorderWidth, double-click it, change the Value data to 0, then click OK.
- Close Registry Editor and restart your computer to change the border thickness.
Other Windows 11 Changes to Windows Border
- Rounded corners – Windows 11 introduced rounded corners for all windows, including the title bar and borders, giving the OS a cohesive look.
- New accent color feature– Customize the color of the border and title bars irrespective of the theme selected; launch Settings>Personalization>Colors, then Accent color and choose a color.
- Dark Themes – This can be applied to the entire system; for that, press Windows + I to open Settings>Personalization>Colors, locate Choose your mode, & select Dark on drop-down.
- Light Theme – Choose a light theme for the entire system; for that, open Settings>Personalization>Colors, then Choose your mode, and select Light on the drop-down menu.
- Colors on Title Bar – Open Settings>Personalization>Colors, then switch the toggle on for the Show accent color on title bars and windows borders option, then select a color from the palette.
How do I remove window borders in Windows 11?
To disable window border color on Windows 11, all you need to do is switch off the toggle next to the Show accent color on title bars and windows borders in the Settings app.
Source: How to Change Window Border Settings on Windows 11 [Color, Size]