F keys are keys found on computer keyboards and are generally labeled F1 through F12. While their primary purpose is to control certain operations within specific applications, each key has a slightly different function depending on the context.

Generally, pressing F1 brings up the help menu of an application. This menu provides assistance and instructions to help a user better understand the program they are using. F2 allows users to rename a highlighted item such as a file or folder. The F3 key typically launches a search function, while F4 opens the "Go To" window, allowing a user to quickly jump around in an open document or program.