some cool windows shortcut keys, to prank your friende.

1). Rotate screen
    Press (Ctrl+Alt+(Any arrow key)) this will rotate your screen in
 the direction of arrow key you press.


2). Immidiate shutdown.(For Windows-XP)
     First press WINDOWS and release then press two times U.
 This will shutdown your computer without any dialog box appearing.

3). Rename multipal files in one step.

    (a). First select all your files you want to rename.
    (b). Now press F2.
    (c). Now simply type new name for file, Press enter.
    (d). Surprisingly all files will be renamed with number (1),(2)......
           appended to thair common names.

4). Guys, many times your computer just hang. Nothing is working
     all applications just freez. In this case

     (a).Press (Ctrl+Alt+Del) this will bring up Task-Manager.
     (b).Now choose all those exe which are not responding and click
          on "end process".
     (c).In case this don't solve your problem, go for "explorer.exe"           and click on "end process".
     (d).Now go to "New task" button on bottom right of first tab(Click           on it).
     (e).A dialog box appears type "EXPLORER.EXE" (without           quotes).
     (f).This would solve hanging problem.