File Explorer doesn’t display folder sizes in the Size column due to performance concerns. You can use a third-party app called Windhawk to install a mod to show ...

you can choose between three options for folder size display: turned off, turned on when holding the Shift key, and always turned on. Consider these options before enabling the mod since ...

Windows 10 makes it easy to make the icons in a folder larger or smaller. First of all, note that changing the icon size of files in a folder changes the size of all the icons in that folder.