help with ctrl+alt+del

when i used to press ctrl+alt+delete i could see what task and processes were running on my sysyem, Im not sure what i did but now it only shows a window with the tasks in it, and to close it I have to click on the little square comuter usage on the bar in bottom right.

Can some one please tell me how I get ctrl+alt+delete to show the processes again, i.e back to the way it used to work. Any help greatly appreciated

 

Open Task Manager and double click on the area at the bottom of its screen.