Me too.
Teclast F15 model n.K3D9
nuber “1” key, absolutely clean, started to typing without any reason apparently.
I had to unistall it and looking for a solution using a bluetooth keyboard/mouse app on my smartphone.
Now it’s the second time I read about this issue connected to a Windows update.
I’m trying to update to the Win 10 v.2004 to see if it resolves.