Pressing F5 refreshes the current view in Windows Explorer and most Windows applications. This reloads the display to show any recent changes or updates. F5 is universally recognized as the refresh key across Windows and web browsers.
Pressing F5 in Windows and most applications (like File Explorer or a browser) triggers a 'Refresh' of the current view or page. It is not associated with undo, redo, or concatenation, which have their own distinct shortcuts (Ctrl+Z, Ctrl+Y, etc.).