I upgraded my Touchsmart 600 (http://support.hp.com/id-en/document/c02507415) to Windows 10. Everything works fine besides touch screen. It actually worked right after I installed new drivers for Graphic card, it worked really fine. After Shutdown or Restart, so after rebooting it stopped working. Now only works on login screen, strange. Whwn I log in, stops. I tried reinstalling Graphic drivers, just to see what happens, and my touch screen worked again. When I restart, again only on login screen. Awkward. Any help would be appreciated. Thanks in advance, Hrvoje.
Similar issues here with a Pavilion TS11. Touch screen works intermittently. Works fine immediately after booting, then randomly quits working. I started to think it was just a coincidence and a wire was loose or something was malfunction in the screen itself. It does randomly start to work again though. I hate it because so far I really like Win10.