I am having problem with Synaptics Touchpad Driver in Windows 10 OS Build 10586.494.

My Touchpad is a PS/2 Port Synaptics TouchPad.
Driver version is which is a compatible driver provide by HP for this OS.
My Laptop Model is HP Probook 4540s

I tried to reinstall the driver and also upgrade it to but the problem is same. Usually when the Touchpad is off the orange light needs to remain on but it turned of after some seconds or a few minutes, after that Touchpad refuses to turn on by double tapping on disabling area. I need to restart the system to get the Synaptics TouchPad settings in notification area. Sometime one Reboot is not enough to get back these settings.

This problem starts after i upgrade from Windows 10 OS Build 1024 to Windows 10 OS build 10586.....
Please help me to resolve this issue.