How To Run Keyboard Troubleshooter. Open the Troubleshoot page in Windows 10 Settings and run the Keyboard Troubleshooter. See if disabling Fast Startup helps as some have reported that this helped.
Select Troubleshoot from the left panel. Press question mark to learn the rest of the keyboard shortcuts. Keyboard Tester is the one name solution that can be trusted on to check whether the most problematic Shift Key Tab Key Alt Key.
In the troubleshoot window select Keyboard③ and click on Run the troubleshooter④.
Next type or paste ms-settingstroubleshoot and hit Enter to open the built-in Troubleshooter. Inside the Troubleshoot tab scroll down to Find and fix other problems and click on Keyboard to expand the drop-down menu. To run the Hardware and Devices troubleshooter in Windows 7. Open the Hardware and Devices troubleshooter by clicking the Start button and then clicking Control Panel.
