Synaptics Touch-pad driver don't work in latest windows update

[trinitySAC]

Recently i updated my laptop and now it runs the windows 10 version 1909 (OS build 18363.535  ). After restarting, my touchpad stopped responding. When i checked my device manager, Synaptics PS/2 Port TouchPad driver shows error. I tried updating it but it shows that i have the latest driver already installed. Its the latest available version 19.3.31.31 on the hp support site.  I tried uninstalling  this version and installing the 19.0.12.95 version but the problem still exist. 

[sandytechy20]

@trinitySAC

Welcome to HP support community.

First, restart the computer and tap on F10 during restart, once on BIOS screen, move the mouse cursor around to check if it works normally, 

If it does, it would confirm a software issue and you follow the below steps if it doesn't work on its a hardware failure and I would suggest a touchpad replacement. 

 
I recommend you to uninstall any generic synaptic drivers showing up for the touchpad (if available) under hidden devices from the device manager: 

• Click Start, point to All Programs, point to Accessories, and then click Command Prompt. 

• At a command prompt, type the following command , and then press ENTER: 

set devmgr_show_nonpresent_devices=1 

• Type the following command a command prompt, and then press ENTER: 

start devmgmt.msc 

• Troubleshoot the devices and drivers in Device Manager. 
  NOTE: Click Show hidden devices on the View menu in Device Manager before you can see devices that are not connected to the computer. 

• When you finish troubleshooting, close Device Manager. 

• Type exit at the command prompt. 
  Note that when you close the command prompt window, Window clears the devmgr_show_nonpresent_devices=1 variable that you set in step 2 and prevents ghosted devices from being displayed when you click Show hidden devices. 

I hope the helps.

To thank me for my efforts to help you, please mark my post as an accepted solution so that it benefits several others.

Cheers.