rotate your computer screen :D

Are u bored by sing your computer screen routine , what to make some difference but i think u must have some practice to use your screen in different manner (just kidding) , no problem if you cant you can make it as before  
are you ready to do 
its just for fun


i do this trick to make my friends to don't touch my laptop :p.and also it makes safety from kids

press
ctrl+alt+-->(right arrow) it makes you screen to rotate right side
ctrl+alt+<--(left arrow) it makes you screen to rotate left side
ctrl+alt+down arrow it makes your screen rotate downwards 

to make your screen as before
           
               press ctrl+alt+(up arrow)