12-10-2018 03:22 AM - edited 12-10-2018 03:30 AM
12-19-2018 09:00 AM
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Lenovo touchpad cannot be deactivated automatically when an external mouse is plugged in. You can disable it by going to Device Manager, right click Lenovo Pointing Device or the touchpad driver (ELAN/Synaptics) then disable it. Unfortunately, it will reactivate if there's a windows update or if you update the driver.
12-19-2018 11:16 PM