[TIP] Use of Function Keys

F1
1) It is used to open help menu in most of the windows application.
2) Windows Key + F1 will open Windows help and support center.

F2
1) It is usually used to rename any file or folder.
2) Ctrl + F2 displays the print preview windows in Microsoft Word.

F3
1) Shift + F3 will change text in Microsoft word from upper case to lower case and vice versa.

F4
1) It opens Find Window in many applications.
2) Alt + F4 will close the programs in windows.
3) Repeats the last action performed in microsoft word.

F5
1) It is used to refresh desktop and refresh a page in internet browser.
2) It is used to open find, replace and go to window in Microsoft word.
3) It start slide show in power point.

F6
1) Moves the cursor to the Address bar in Internet Explorer and Firefox.

F7
1) It is used to spell check and grammar check a document in Microsoft Office applications.

F8
1) It is used to enter the Windows Safe mode.

F10
1) Shift + F10 is the same as right click on any selected item.
2) Activates the menu in any application of Microsoft Office.

F11
1)Opens the full screen mode in various explorer.

F12
1) Open the save as windows in various application of Microsoft office.
2) Shift + F12 saves the Word document.
3) Shift + Ctrl + F12 prints the Microsoft Word page.

....just posting it cuz i've seen the dust on function keys quite often