Cursor gone & Touchpad not working Win 10 Stream

[RogerM-Ohio]

Had to do re-install of Win 10 after corrupt 1709 update. All associated updates have been installed

Loaded HP support Assistant and it installed the Wireless Button driver - No idea what that is for

Touchpad does not respond and cursor is not visible.

If I plug in an external USB mouse (wireless Logitec) I get a cursor and mouse works.

Tried installing HP driver SP80964 but that did not fix the problem.

Reviewing various other questions and solutions I note that I can never get to the mouse properties screen that shows the Synaptics tab or the  box to un check for disabelingtouchpad when external mouse is connected.

Synaptics web site says to use the touchpad driver from MFG but the HP driver does not fix the problem.

Device Mgr shows not problem with mouse driver but only shows HP compliant mouse. No Synaptecs device shown

[kyle_b · Accepted solution]

Reinstall the Intel Serial I/O chipset driver from hp.com

[RogerM-Ohio]

Too bad the hP "Support Assistant" wasted time installing somethnigcalled "Touch Button" and didn't identify the drivers needed for the laptop to run properly.

But your "fix" to install the Serial I/O chipset driver worked.  I used SP69101

Thanks