Keyboard Function Keys
| F1 | |
| Activates help for current open application. If you’re at the Windows desktop, this activates the help for Windows. | |
| F2 | |
| Renames a highlighted icon, file, or folder in all versions of Windows. | |
| In Microsoft Excel, edits the active cell. | |
| ALT+CTRL+F2 opens document window in Microsoft Word. | |
| CTRL+F2 displays the print preview window in Microsoft Word. | |
| Quickly rename a selected file | |
| or folder. | |
| Enter CMOS setup. | |
| F3 | |
| Starts find or search when at the Windows desktop in all versions of Windows. | |
| In some programs, after an initial search is performed, F3 will find the next search value. | |
| In MS-DOS or Windows command line, F3 repeats the last command entered. | |
| In Microsoft Word CTRL+F3 will lowercase any highlighted text. | |
| SHIFT+F3 changes the text in Microsoft Word from upper to lowercase or a capital letter at the beginning of every word. Windows Key + F3 opens the Advanced find window in Microsoft Outlook. | |
| In Windows Explorer, start the search function. | |
| Open Mission Control on an Apple computer running the macOS X operating system. | |
| F8 | |
| Pressing F8 over and over as the computer is booting starts the computer in Safe Mode. | |
| Used by some computers to access the Windows recovery system, but may require a Windows installation CD. Displays a thumbnail image for all workspaces in macOS. | |
| F9 | |
| Refresh document in Microsoft Word. | |
| Send and receive e-mail in Microsoft Outlook. | |
| Opens the Measurements toolbar in Quark 5.0. | |
| Reduce laptop screen | |
| brightness (on some laptops). With macOS 10.3 or later, displays a thumbnail for each window in a single workspace. | |
| Using the Fn key and F9 at the same time opens Mission Control on an Apple computer running the macOS X operating system. | |
| F10 | |
| In Microsoft Windows, activates the menu bar of an open application. | |
| SHIFT+F10 is the same as right-clicking on a highlighted icon, file, or Internet link. | |
| Access the hidden recovery partition on Compaq, HP, and Sony computers. | |
| Enter CMOS setup on some computers. | |
| Increase laptop screen brightness (on some laptops). With macOS 10.3 or later, shows all open Windows for the active program. | |
| F11 | |
| Enter and exit full screen mode in all modern Internet browsers. | |
| CTRL+F11 as the computer is starting to access the hidden recovery partition on many | |
| Dell computers. | |
| Pressing F11 by itself accesses the hidden recovery partition on eMachines, Gateway, and Lenovo computers. | |
| With macOS 10.4 or later, hides all open windows and shows the desktop | |
| F12 | |
| Open the Save as window in Microsoft Word. | |
| CTRL+F12 opens a document in Word. | |
| SHIFT+F12 saves the Microsoft Word document (like CTRL+S). | |
| CTRL+SHIFT+F12 prints a document in Microsoft Word.
Preview a page in Microsoft Expression Web. |
|
| Open Firebug or browser debug tool. | |
| With an Apple running macOS 10.4 or later, F12 shows or hides the Dashboard. | |
| Access the list of bootable devices on a computer at startup, allowing you to select a different device to boot from (e.g., hard drive, CD or DVD drive, floppy drive, USB drive, and network). |
