Miguel owns a Windows 8 laptop, upgraded to 8.1. But 'the touch screen…began to fail sometimes, until it failed completely.'
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Almost all Windows 8 tablets come with decent hardware and one or more USB ports. These USB ports are helpful when you are in a good mood to play some serious games that are not optimized for multi-touch displays. To avoid accidentally touching the screen, you may want to temporarily disable the touch screen (touch input) after connecting the keyboard and mouse to the tablet. When the touch screen is in a disabled state, the display will behave just like any other normal non-touch display. Windows 8 provides a simple way to temporarily disable the touch screen. To disable or enable the touch screen to follow the steps given below. To disable the touch screen:Step 1: Switch to Start screen. In the Start screen, tap on Control Panel tile to launch the Metro style Control Panel. Step 2: In the left pane of Control Panel, tap on More settings to open the good old Control Panel. Step 3: Here, navigate to Hardware and Sound and then Pen and Touch. Users who have enabled small icons in Control Panel can directly tap on Pen and Touch option. Step 4: In the Pen and Touch dialog, switch to Touch tab. Here, disable Use your finger as an input device option. Tap Apply button. You are done. You have just disabled the touch input! From now on the touch screen will not respond for the touch input. To enable the touch screen:Method 1: Step 1: Connect a USB keyboard or mouse to the tablet. Go to Control Panel > Hardware and Sound > Pen and Touch. Step 2: Enable Use your finger as an input device option. Click the Apply button to enable the touch screen. Method 2: Use this method only if your tablet doesn’t have USB ports Step 1: Press and hold the power button to shut down the tablet. Step 2: After shutting down the tablet, press the power button again to switch on the tablet and boot into Windows 8. You should now be able to use the touch screen. WARNING: Please save all your work before disabling the touch input. Once the touch input is disabled, you will need to connect either a dock, keyboard or mouse to enable the touch input again. If you are on Windows 10, refer to our how to disable the touch screen in Windows 10 guide.
First things first: If you haven't done so already, reboot. Yes, it's obvious, but so many people don't think about it, and it fixes so much.
But it doesn't fix everything. So if the problem remains, follow the suggestions below. I'm assuming your PC is running Windows 8 or 8.1.
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Grease and dirt can confuse or block the screen's sensors, so clean the screen.
If you're still having problems, use Windows 8's Calibration tool. Go to the Search Charm and type
calibrate . Select Calibrate the screen for pen or touch input. If the Reset button isn't grayed out, click it. Otherwise, click Calibrate and see if the resulting program works.
Still having problems? Time to try reinstalling drivers. At the Search charm, type
device manager and select Device Manager. Expand the Human Interface Devices section. Find the touchscreen; it's probably called HID-compliant touch screen. Right-click it.
If the pop-up menu says 'Enable,' there's your problem. Click it.
Otherwise, select Update Driver Software.
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For the location, try C: for a full search of your hard drive, making sure Include subfolders is selected.
If that fails, try again. But this time, select Update Driver Software, then Search automatically for updated driver software.
And if that fails, right-click the touchscreen again, select Uninstall, and confirm. Then reboot. This will automatically reinstall the touchscreen driver that came with the computer.
Still no luck? Go to the manufacturer's website and see if there's an updated driver there. But make sure it's for your model.
It's possible that your driver is just fine, but another setting in Device Manager could be blocking your touchscreen. Back in Device Manager's Human Interface Device section, right-click USB Input Device. (If you find more than one of these, try each one.) Select Properties. Click the Power Management tab. Uncheck Allow the computer to turn off this device to save power.
That might solve your problem, but at a cost. Your computer will use more power, shortening battery life.
If none of these pan out, it's probably a hardware problem. Bring it into a shop to have it fixed.
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