The da0073wm laptop sticker says Touch Screen. The tablet setting denies it.

[WryThot]

I thought this laptop had a touchscreen but can't recall using that feature.  Then I tried touching the screen to no avail.  The HP sticker clearly states HP touchscreen.  I went into system and clicked tablet only to have text appear announcing the device did not have touchscreen.   How can it be that the reviews of the machine indicate touchscreen, the sticky label next to the touchpad indicates touchscreen, and yet there be no touchscreen feature?  This is running Windows 10 64 bit Home edition.    The only hardware modification I have made has been to add ram.   The ports, touchpad, bluetooth, wi-fi, and ethernet all work.  It's memory is better than mine.   I can't recall if I ever tried the touch feature.  Did HP provide me with a machine with a sticker on it saying Touchscreen and yet the machine not have it?    If so, that's a bit much.  Is there a setting or key combination I have overlooked that toggles such a feature?  This laptop was sold with a I7 processor and 4 GB ram (which is why I upgraded ram).  As indicated, it is model da0073wm, a 15 inch laptop.

[banhien]

@WryThot 

What is your HP Mist Laptop da0073wm  machine ? Is it an HP Notebook - 15-da0073wm ? Its specs

         https://support.hp.com/au-en/document/c06057185

It has 15.6" diagonal HD SVA WLED-backlit touch screen (1366 x 768). It is NOT a x360 machine therefore it does not have tablet mode for screen. How to you get to Tablet mode ?

Regards.

[WryThot]

When I reboot and hit F2 and thus get into HP Diagnostics, I can click components and therein find a Touchscreen test.  Amazingly, my touchscreen works for all the tests and passes them all.   When I exit Diagnositics and reboot, the touchscreen does not work nor does the driver appear in Device Manager.   Obviously as it works during the components test, I do not have a hardware problem.   And that appears to be true in spite of the touch screen not working for the BIOS screen, contrary to some advice posted elsewhere suggesting if it does not work there, I have a hardware problem.

As to the 360 mention and tablet mode, if I type into the Run box "tablet settings", I can reach options to cmonfigure for such when I sign it.  Sadly, if I click to change the settings, what pops up is that my HP does not support touch!!!   And that happens after I have passed the touch test in diagnostics which requires I actually manipulate the screen by touch!!!

I am supposing that in tablet mode I would seen the big panes representing programs to access.  Surely I don't have to pull up that screen to use "pinch" features on the HP screen via touch.   At any rate I have no particular interest in exploring tablet mode other than to see if the touch screen might work there.  My issue is that on my regular desktop, the computer denies that it even supports touchscreen.   And has it has no driver for touchsceen listed in Device Manager, it is sort of a self fullfilling report!!!     Why the devil I can't get the driver to show up there when I have confirmed I do have touchscreen features during the diagnoistic I reach via F2, I have no idea.   Bizarrely, my HP Diagnoitic reached by other means does not even list Touchscreen as a Component!   It is humerous that the only time touchscreen works is during the Touchscreen diagnoistic reached via F2 on reboot. , it is not all that funny given give I have spent over 16 hours so far trying to get my Touchscreen to work.  My sole breaktrough has been in discovering the touchscreen actually works druing the F2 Hardware Diagnoistics some sixteen hours later.  Now, to see if I can make the drivers appear in Device Manager.  It does not even after a scan via that menu.

[WryThot]

Finally, success.   Reinstall the original touch screen device driver that came installed on the computer using the following steps:
In Windows, search for and open Device Manager.
Expand Mice and other pointing devices.
Right-click the USB Touchscreen Controller(C04D).
Select the option Browse my computer for driver software.
Select the option Let me pick from a list of device drivers on my computer.
Select USB Input Device, and click Next.
Follow the onscreen instructions to install the driver.
When driver installation is complete, confirm the touch screen is functioning properly.

This restored my touchscreen!   All that drama concerning the HID Compliant Touchscreen came to naught.  Rather, in Device Manager, this solution worked under Mice!   And never once was I able to conjure up the aforementioned, no matter what driver I tried from the Microsoft Catalog.  I tracked down the information after seeing that the Touchscreen Controller was called an odd four letter combination C04D in Speccy.   Googling that turned up the solution in an HP forum.  And after I followed these instructions and the fix worked, I could no longer find a reference in Speccy to the C04D or even a mention of Touchscreen!!!  But the solution worked.