Lenovo ThinkPad T420 Synaptics UltraNav Driver 16.2.19.7

Fixes:
- Fixed an issue where Tap and Drag of touchpad fails when switching windows with Alt + Tab keys.
- Fixed an issue where TouchPad cannot support Edge swipe in Windows 8 on T430, T430i, T430s, T430si, T530, T530i, W530, W530i.
- Fixed an issue where Two finger scrolling is not working on inactive Internet Explorer window.
- Fixed security vulnerability issues.

This package installs the UltraNav driver to enable the following devices:
- ThinkPad UltraNav Pointing Device
- IBM ThinkPad UltraNav Pointing Device

If this package has been installed, updating (overwrite-installing) this package will fix problems, add new functions, or expand functions. This program is language independent and can be used with any language system.