This sounds like a malfunctioning touchscreen. The white spots are were the OS is detecting touch input and its providing visual feedback in the form of these white spots.
+
This sounds like a malfunctioning touchscreen. The white spots are where the OS is detecting touch input and its providing visual feedback in the form of these white spots.
See if you can disable touch input. That will allow you to bypass the problem for now.
After that you should download HP Image Assistant and get your drivers up to date.
Clean your screen, make sure there's nothing on there that might register as input.
This sounds like a malfunctioning touchscreen. The white spots are were the OS is detecting touch input and its providing visual feedback in the form of these white spots.
See if you can disable touch input. That will allow you to bypass the problem for now.
After that you should download HP Image Assistant and get your drivers up to date.
Clean your screen, make sure there's nothing on there that might register as input.