Hello SylvanEvergreen,
Thank you for reaching out Microsoft Community. You may follow the steps from this link How to Turn On or Off Ignore Touch Input when using Pen in Windows 10.
If that doesn't help try the steps below:
2. Expand Human Interface Devices.
3. Right-click on HID-Compliant Touch Screen and select Uninstall. If there is more than one driver, uninstall that as well. If only one driver, click View then Show hidden devices. If the other driver shows up HID-Compliant Touch Screen, uninstall it. Include the Intel Precise Touch Device.
· Note: If prompted with a checkbox stating "Delete the driver software for this device", check it then hit Uninstall. This is to remove the driver completely. Do not restart the Surface yet if prompted. Do this for both drivers.
4. Go to Download drivers and firmware for Surface and download the .msi file.
· If there's not an .msi file that corresponds to the build of Windows 10 you have installed, select the .msi file that's closest to your build number.
· To find out which version and build of Windows you're using, select Start > Settings > System > About , then look under Windows Specificationsto find your operating system version and OS build number.
5. Restart the Surface Twice to apply the changes.
If this works, we highly encourage you to inform our Community by clicking on Yes or marking my post as an answer. This will help other members who may have the same issue as you. Otherwise, don't hesitate to update us so we can further assist you.
Regards,
KarenJune_F