Hello Ed,
Thank you for posting in Microsoft Community.
I am aware about the issue you’re experiencing with your Surface Pro 7. The issue you described could be related to what’s commonly referred to as “phantom touch” or “ghost touch”. Based on the issue you described, it is possible that this is a hardware issue with the touchscreen of your Surface Pro 7.
However, before we conclude that it is a hardware issue, we can try some troubleshooting steps to see if it resolves the issue.
Boot to UEFI and test touch functionality: UEFI is a type of software that helps Windows communicate with your Surface’s hardware. Testing hardware in UEFI will work if you have a hardware issue.
- Go to Start > Power > Shut down.
- When Surface is off, press and hold the volume up button and press the power button until a Microsoft or Surface logo appears onscreen.
- Once you are in UEFI, touch your Surface screen and see if it responds normally. Try to navigate in UEFI by tapping various menu items.
- If touch doesn’t work on your Surface, your touchscreen most likely experienced a hardware failure.
For other troubleshooting guide, see What to try if your Surface touchscreen doesn't work - Microsoft Support.
If none of the solutions works, you may need to disable the touchscreen drivers as a work around.
Kind regards,
Lavenia