f1 Open the Help screen for almost every program.

f2 Allows you to rename a selected file or folder.

f3 Opens a search feature for an application that is active at the moment.

f4 Alt + F4 closes the active window.

f5 Allows you to refresh or reload the page or document window.

f6 Moves the cursor to the address bar in most Internet browsers.

f7 Used to spell check and grammar check a document in Microsoft applications such as Microsoft Word.

f8 Used to access the boot menu in Windows when turning on the computer.

f9 Refreshes a document in Microsoft Word and sends and receives e-mails in Microsoft Outlook.

f10 Activates the menu bar of an open application. Shift + F10 is the same as right clicking.

f11 Enters and exits fullscreen mode in Internet browsers.

f12 Opens the Save as dialog box in Microsoft Word.