Crrl key problems

Hi my name is jorge and i have an hp envy6-1014NR sleekbook and suddenly my competer detects im holding down the ctrl key. I've tried to disable in device maneger but the option is unaveilable so i uninstalled it, since i had another keyboard i thought it wouldnt be an issue. So my pc detected that and downloaded the drivers again but im having the aame problem. I tried to take the keyboard cable from the board and even then it would still appear im holding it down. I also tried to download a program to disable single keys but it didnt work either. I dont know what to do, any help will be appreciated.

Well the pinch zoom thing didnt worked either... This is so frustrating by the way earlier today after i posted my threat it suddenly stopped detecting the problem (i have the onscreen keyboard on) and i saw that the control keys stopped blinking and everything went back to normal but then same thing happened and started blinking after a while

I dont know i unplugged the keyboard from the board and still with no keyboard on the pc it detected that they key was beeing held down