- Almost always used as the help key, almost every program will open the help screen when this key is pressed.
- Enter CMOS Setup.
- Windows Key + F1 would open the Microsoft Windows help and support center.
- Open the Task Pane.
F2
- In Windows renames a highlighted icon, file, or folder in all versions of Windows.
- 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
- Often opens a search feature for many programs including Microsoft Windows when at the Windows Desktop..
- In MS-DOS or Windows command line F3 will repeat the last command.
- Shift + F3 will change the text in Microsoft Word from upper to lower case or a capital letter at the beginning of every word.
- Windows Key + F3 opens the Advanced find window in Microsoft Outlook.
- Open Mission Control on an Apple computer running Mac OS X.
F4
- Open find window in Windows 95 to XP.
- Open the address bar in Windows Explorer and Internet Explorer.
- Repeat the last action performed (Word 2000+)
- Alt + F4 will close the program window currently active in Microsoft Windows.
- Ctrl + F4 will close the open window within the current active window in Microsoft Windows.
F5
- In all modern Internet browsers pressing F5 will refresh or reload the page or document window.
- Open the find, replace, and go to window in Microsoft Word.
- Starts a slideshow in PowerPoint.
- F6
- Move the cursor to the Address bar in Internet Explorer, Mozilla Firefox, and most other Internet browsers.
- Ctrl + Shift + F6 opens to another open Microsoft Word document.
F7
- Commonly used to spell check and grammar check a document in Microsoft programs such as Microsoft Word, Outlook, etc.
- Shift + F7 runs a Thesaurus check on the word highlighted.
- Turns on Caret browsing in Mozilla Firefox.
- F8
- Function key used to enter the Windows startup menu, commonly used to access Windows Safe Mode.
F9
- Opens the Measurements toolbar in Quark 5.0.
- With Mac OS 10.3 or later shows all open Windows.
- Using the Fn key and F9 at the same time will open Mission Controlon an Apple computer running Mac OS X.
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 HP and Sony computers.
- Enter CMOS Setup.
- With Mac OS 10.3 or later shows all open Windows for active program.
F11
- Full-screen mode in all modern Internet browsers.
- Ctrl + F11 as computer is starting to access the hidden recovery partition on many Dell computers.
- Access the hidden recovery partition on eMachines, Gateway, and Lenovo computers.
- With Mac OS 10.4 or later hides all open windows and shows theDesktop.
F12
- Open the Save as window in Microsoft Word.
- Shift + F12 save the Microsoft Word document.
- Ctrl + Shift + F12 prints a document in Microsoft Word.
- Preview a page in Microsoft Expression Web
- Open Firebug.
- With an Apple running Mac OS 10.4 or later F12 will show or hides the Dashboard.
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