# Windows – How to change window title bar size in Windows 10

themeswindows 10

As far as i can remember in older versions of Windows you were able to modify the thickness of the window title bar so that minimize and close icons become smaller and the top of the window narrower.

What i'm referring to:

I cannot seem to find this setting in windows 10. Is it hidden somewhere?
How can i modify the theme used in Windows 10 (not choose another theme but modify default one).

Thanks for any help.

I don't have Windows 10, but the solution is probably to change the registry at
HKEY_CURRENT_USER\Control Panel\Desktop\WindowMetrics.

The following registry .reg file will make the titlebar thinner, the titlebar text smaller, scroll bars thinner and the border padding as thin as possible.

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Control Panel\Desktop\WindowMetrics]
"CaptionHeight"="-285"
"CaptionWidth"="-285"
"CaptionFont"=hex:f4,ff,ff,ff,00,00,00,00,00,00,00,00,00,00,00,00,90,01,00,00,\
00,00,00,01,00,00,05,00,53,00,65,00,67,00,6f,00,65,00,20,00,55,00,49,00,00,\
00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,\
00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00
"ScrollWidth"="-240"
"ScrollHeight"="-240"

Remember to export the WindowMetrics key before you start modifying it, just in case you need to revert to the defaults after having messed something up. You also need to log out and back in again to see the changes.
For CaptionHeight and CaptionWidth, use the following formula: -15*desired height in pixels. For example, to set the title bar height to 18px, set the CaptionHeight value to -15*18, resulting in -270.