Help..! my touchscreen isnt working at all..

i have this pavillion 11x 360, and it was working all fine, until its touchscreen stopped working. i tried to follow the manual for trouble shooting at hp's site, and uninstalled the HID compatible touchscreen, restarted the pc, but it seems like the computer still haven't noticed the missing driver..i tried the hardware wizard at the device manager but it didn't work.. how can i install it again..and how can i get my touchscreen back to working? please please help me..