Chosen Solution
what is causing this? its phantom touches?
Has this tablet been dropped or repaired? It’s definitely a touch issue with the digitizer itself. These issues can be software related, but they rarely are. Is there a warranty left on it by chance? I know a lot of repair shops that dont touch tablets like this because they are either not worth fixing since the repair may cost the same or more than a replacement or the parts are hard to find. If you have your data backed up, Id wipe the device and restore it to factory just as a last ditch effort.
Go into your control panel , click hardware and sound, then click device manager under and find a option to delete touch device under human interface devices , or something that says that, i deleted it so I forgot what it’s called. So now my screen doesn’t touch by itself .