Mouse pointer moves and opens programs on its own.

[marlin2]

I've replaced the mouse and that didn't help.

[mdklassen · Accepted solution]

If you temporarily disable the "touchscreen" capability, does the mouse-pointer "behave" ?

If so, you have a problem with the touchscreen hardware.

If the original HP Warranty on your computer is still active, open a claim against the warranty.

Scroll down-and-left on this page, to see the "Contact HP" hyperlink.

[marlin2]

Thank you!   Disabling the touchscreen did the trick.  Unfortunetly, my PC is out of warranty.  But at least now I understand what is causing the problem and how to correct it.  I think everytime I get an update from windows and the PC reboots, the touchscreen is reactivated.  Thanks again!