Keyboard Failure

Some of my keys wont work after i installed windows 8.1.. i have tried to update the keyboard driver and i have tried to reinstall hole windows but still wont work.. anybody there can help me fix this problem?? I am using my laptop for school so its really importent :(

A few days ago I purchased the N56DP-DH11. So far, so good, and the gaming seems to be going alright (still trying to get temps down ad everything as I'm new to all this). Anyway, yesterday I noticed that if I press Fn + F11 (to turn the volume down) or Fn + F12 (to turn the volume up) it types...

I was fixing my mom's laptop's screen, which required taking out the keyboard. However the keyboard is attached by ribbon cable. I simply slid the ribbon cable back into place upon closing up the laptop again, but the keyboard no longer works. It seems to be positioned perfectly in the laptop...

i usEd to have this problem SOME TIME BACK. SHIFT KEY SEEMED TO BE ALWAYS PRESSED, SO I DISABLED ONE OF THE SHift key using a softwarE NAMeD key tweak> but THE problem has agaiN SURFACED, I HAvE BLOCKED BOTH THE SHIFT KEYS NOW, BUT U CAN SEE HOW MY KEYBOARD IS WORKING> pls help tia

my toshiba laptop keyboard will jump few letter and numbers. It happened yesterday and works when I blow it but now I can't type letter "r" and "y" and some numbers evenif I blow it up as yesterday. what shall I do?

Dell studio laptop...... just stopped working!! Help..............

i've an acer aspire 5585 whose keyboard wont work anymore. i cant even enter bios(using f2 key at the acer logo splash screen where it says "press f2 to enter setup"), but the wierd thing is that if i turn on the laptop with F2 key pressed i get in the bios but still the keyboard wouldn't work...