Whenever you hover your mouse pointer over any folder or desktop item a pop-up description box or tooltip appears. This pop-up box shows details like Total size, Free space, Date created, Size, Folders & Files it contains, and so. If you wish, you can disable pop-up description for folders & desktop items in Windows 10/8/7.

Pop-up description for folder & desktop items

If you wish to disable pop-up description for folders & desktop items, open Folder Options. In Windows 8, you can type Folder Options in start screen search and select the result. Click on the View tab and uncheck Show pop-up description for folders & desktop items.

Click Apply and Exit. To enable it back, simply check the box.

This setting changes the value in the following registry key:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\ShowInfoTip

Do note that this setting will affect only the pop-up description for folder & desktop items, and not the pop-up descriptions that you see for items on the Taskbar, Start Menu button or the Notification area.