If you are keeping an external mouse connected, I would suggest using the setting that allows you to disable the internal pointing device (the mousepad) when an external USB pointing device is attached. Exactly where that is located under the Control Panel, Mouse pane depends on the exact brand of internal mouse is used on your laptop and how the dialog that comes up presents it.
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Brian -Windows 10 Pro, 64-Bit, Version 2004, Build 19041
The purpose of education is not to validate ignorance but to overcome it. ~ Lawrence Krauss
