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Synaptic top 2 buttons + pointing stick stopped working + touchpad device setting disappeared

HP Recommended
HP EliteBook 840 G6
Microsoft Windows 10 (64-bit)

Hello , 

Synaptic top 2 buttons + pointing stick stopped working. Also the touchpad settings tab in the mouse settings disappeared. 

I tried the following so far and non worked : 

1- Restart the laptop

2- Uninstall the touchpad from the device manager then restart the PC

3- Update the driver with the latest version

4- Rollback to older versions of the driver

5- Check options in the registry

6- Update Serial I/O driver


All 3 issues are still outstanding though I did all 6 fixes that I got from the internet

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