HELP WHY MY LAPTOP TOUCHSCREEN NOT WORKING

[Pavendaxx]

I turn on my laptop (Lenovo Yoga Y520) like usual but somehow the touchscreen doesnt work but the pen does, so I go ahead disable the driver and enable it again but that doesnt work, So I uninstall the driver hoping the window will reinstall it with a fresh driver and that also doesnt work too. So what should do next? I'm thinking a bios update and hoping it will work again. I have tried to update the touchscreen filmware from lenovo official website, but when I install the filmware it says target device not found. Also the display flicker like when the driver is being installed but after the flicker another problem came in, there is a square artifact on the display. I didn't open anything yet im just on the desktop and there is a smal square artifact. The artifact size is about 1 inch x 1 inch. So does anyone know how to fix it? Soon I will do a fresh windows install if the methods on the internet doesnt work. 

 

Any response will be helpful

Thank you

[PwnyTheTiger]

Is there any option for the touch-screen for a "hand ignoring" feature? I know that sometimes with those pen systems have a way to avoid any accidentally placement of your palm on the surface to write and such. This is about the only thing I can think of, but I'm admittedly not too familiar with touch screen notebooks.