Strange artefacts on windows

[Mrluckhurst]

I have a computer that has a very strange glitch

 

Anyone know what the white circles at the bottom of the screen could be?

 

I have tried swapping monitor and VGA cable with no change

 

 

Thanks

[computer_expert]

Is there a touchscreen, IWB, touchpad or any other touch input type device connected that's providing a possible erroneous input?

[Koldov]

Looks like some kind of visual 'touch-screen' feedback... or mouse cursor 'show location' setting.

 

If you have a touch-screen then it will need to be recalibrated, if you don't maybe Windows has been set to tablet mode or the computer is connected to an IWB (maybe Smartboard software), or the screen has been incorrectly identified as a touch-screen, there will be settings to remove it (mouse settings, screen settings, or something like remove it in device manager/or tablet settings in Windows components). I have a laptop that thinks it has a touch screen (it doesn't) but I've never had anything like this so I can't be more specific... someone here will know hopefully.

 

Something like this:

 

https://www.howtogeek.com/427293/how-to-disable-the-touch-feedback-circles-on-windows-10/

 

https://www.thewindowsclub.com/remove-ghost-touch-bubbles-from-windows-10-tablet

[Brax]

That's 100% a touchscreen or touch device connected to it or it thinks there is one and that's causing the problem. Had this with the classic tinsel on a promethean at xmas!

[DalekSec]

Had this many a time, fake touchscreen touches. Check if anything is touching any other external screen. If still no go into settings and disable touch.