Looking at the manual for your monitor here - there is no mention at all of a touch screen function, USB, or anything else. As such, I'm suspicious there is a third party overlay on your monitor controlling the touch interface.
Without being able to physically inspect the device, it's hard to say for certain what is providing it. It's possible, looking at your video, that the overlay is fitted upside down, as the input you're describing would make sense if the touch screen was rotated 180o.
It's also possible the touch screen is fitted correctly and has an accompanying driver and software package allowing the input to be rotated. Without knowing the exact device, it's not possible for me to say what this may be, but you could do the following steps to try and work it out:
- Go to Device Manager (Win + X -> Device Manager)
- Find your touch device in the list - It may be under
Human Interface Devices or
Mice and other input devices if it's not in an obvious location.
- Right click the device and click
Properties, go to
Details and click
Hardware Ids in the drop down box.
- In here you should see a
PID ID, which you can search online to find out what the device actually is and what driver it takes. For example, my mouse uses
VID_0461 PID_4D17, so I would search this to find a relevant driver, should I need it.
Alternatively, you could see if the touch overlay can be removed easily and fitted rotated the other way up - although if the previous owner had it this way it's more likely there is a software way this can be resolved.
Edit- Looking around a little more, a couple more suggestions are:
- Try using the calibration tool (See here for more info,
- There's a Q/A here where one user has created a tool to flip the X and Y axis of a mouse, although this is likely to disrupt your normal mouse usage as well.