How to use mouse pointer when mouse fails to work. Step 1: Press “left ctrl + left shift + number lock” at a time. Step 2: A wizard opens and asks you whether to activate the mouse keys or not, click yes for that. Keys used 1 : move left side down 2 . move down. 3 . move rightside down 4 . move left side. 6 . move right side. 7 . move left side up. 8 . move up. 9 . move right side up. 5 . right click. + . Double click. 0 . click and hold.