Functional Keys(F1 to F12) windows operating system
Some uses for function keys in Windows:
Key Function
F1 Brings up a Help window in many applications, including browsers, Microsoft Office
F2 Renames a selected object
F3 Opens search box in browsers
F4 Displays the Address bar list in My Computer or Windows Explorer (Windows XP)
F5 Refresh/Updates the active Window. Useful to refresh a displayed page in a browser
F6 Cycles through the screen elements in a window. Move the cursor to the address bar in
Internet Explorer, Mozilla Firefox, and most other Internet browsers.
F7 Performs Spell and Grammar check (MS Word)
F8 Extend selection (MS Office)
F9 Updates fields (MS Office)
F10 Activates menu bar options
F11 Toggles between full screen and normal display in browsers
F12 Opens "Save as" dialog (MS Office)
Alt+F4 - Close the current window