F1 = Can be used in almost all programs when help is needed. Pressing the F1 key will bring up the help screen of the currently active program.
F2 = Can be used to rename a selected file or folder. Another option is to press F2 while Windows is loading. This will not work on all computers.
F3 = Used to display the search box for a currently open program. Pressing F4 = Alter Key and F4 Key together can close any currently open program or Windows Explorer Box.
F5 = Can be used to refresh the Windows Desktop. It can also be used to reload a page opened in an Internet browser. In Microsoft Office Word, the Find and Replace dialog box appears and Go To is active.
F6 = Pressing F6 while the Internet browser is open will activate it in the address bar. In Adobe PageMaker, it is used to change the Bold Type.