MY KEYBOARD & MOUSE R NOT WORKING...WHAT SHOULD I DO?

Hlo gys today i'm gonna share an useful tips with you...so no more talk lets start.. IF YOUR KEY-BOARD DONT WORK JUST FOLLOW THIS: START>ALL PROGRAMS then go to this option ACCESSORIES>ACCESSIBILITY>ON-SCREEN keyboard and then click. IF YOUR MOUSE DONT WORK PROPERLY JUST FOLLOW THIS: left Alt+left Shift+Num Lock press all keys together then a dialog box appear before you then click OK.Now numeric keypad will work instead of mouse.1,2,3,4,5,6,7,8,9,0 using this number you can move your mouse pointer.... THX ALL OF YOU...GOD BLESS YOU GYZ...