What is the name of the button that refreshes the computer screen?

Answer 1

There is no such button. Nor is there any need for such a button. The computer screen refreshes itself automatically depending on the chosen screen refresh rate (typically 60 Hz which is 60 refreshes per second).

You are probably referring to the desktop. This is not "the computer screen", it is a window controlled by the operating system's "shell" program. In Microsoft Windows, the default shell program is Windows Explorer, which provides the desktop window and task bar window in addition to file navigation windows. When the desktop window is the currently active window, the F5 key will force the desktop to refresh. However, this is not the same as refreshing "the computer screen" because any other (non-active) windows that are currently open on the desktop will not be refreshed. You have to select each window in turn to activate it and then refresh its content using the appropriate keystroke (if one is actually provided by the application). F5 will refresh any active Windows Explorer window but you cannot guarantee it will serve the same purpose in other applications. For example, when Microsoft Word is active, the F5 key will open the Microsoft Word 'Find and Replace' dialogue. But if Microsoft Excel is active, the F5 key will open the Microsoft Excel 'Go To' dialogue instead. However, most Windows Web Browsers (e.g., Chrome, Firefox, Edge and Internet Explorer) will react to the F5 key, forcing a reload/refresh of the current page.

Answer 2

The commonly used refreshment key is the function key, F5.