When accessing a Microsoft® Remote Desktop session, you might come across the need to access the Windows Security screen or dialog to perform operations such as locking the session or changing your password. The below screenshot shows how the screen looks like on different versions of Microsoft® Windows®.

To access this screen or dialog box on a Windows® based machine, you would need to use the Ctrl+Alt+End combination.

When using a Mac device without such keys, you must instead use the Fn+Ctrl+Option+Delete combination.