replacement laptop keyboard doesn't work only is in tool manager?

i have a windows 7 64-bit ultimate, and the laptop is a HP dv7t-4100.

It doesn't work at all, but is in device manager and even once trying to update operator or whatnot, it's supposedly fitted with the latest driver. The new device is an detailed copy of the old keyboard, and the old one works fine after switching back and forth to try to amount out what the heck is going on.

any help would be greatly appreciated. Thanks.