I have a Lenovo Thinkpad E145. I hate Windows 8, so when I ordered the product I paid a small amount to degrade to Windows 7. There's a Microsoft product called WINDOWS TOUCH, which should allow me to use my fingers rather than a mouse with O/S Windows 7. However when I try to install Windows Touch, there are incompatibility issues with the Thinkpad's screen. But ..... since the "normal" O/S on the Thinkpad is Windows 8 -- surely the screen should be "touchable"?! Is there a driver missing, or some other solution ?