S20-30 Touch - no usb, touchscreen and camera problems

Hi all, i have a s20-30 touch with windows 8.1 running, recently ive noticed that my usb has stopped working. when go to device manager it says universal serial bus controller are not installed code 28 - i can not find any drivers for windows 8.1 64 bit and also do remember uninstalling them either. also i have noticed that the touchscreen has stopped working , (screen is in perfect looking condition) and also the intergrated camera is not working also. the laptop runs fine, switches on very fast, opens all programs i use, etc any help. ive looked on the lenovo support pages but nothing seems to be availble to download for what i need. all help would be very much appriciated thanks

Have you tried a Reset...
Press and hold the Sleep/Wake button and the Home button at the same time for at least ten seconds, until the Apple logo appears. Release the Buttons.
http://support.apple.com/kb/ht1430

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S20-30 Touch - no usb, touchscreen and camera problems

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