Copies the selected item: Ctrl + C
Cut Ctrl + X: selected items
Paste Ctrl + V the selected item (s):
Undo Ctrl + Z to perform:
Repeat it I just undo: Ctrl + Y
Select all: Ctrl + A
Print: Ctrl + P
Switch between open Windows Alt + Tab
Open the Task Manager Ctrl + Shift + Esc
Expand the maximized Windows Picture of the Windows logo key logo key + up arrow.