My pc has had this issue for some time now, but its been mostly bearable. Its gotten really bad lately, so I need to fix it. Everything regarding Windows UI (start menu, settings, calculator) has the selector (like the thing that shows up when you use the arrow keys to select stuff) constantly moving, like the arrow keys are being held down. They are not, it does it even if all peripherals are unplugged. I can barely do anything, since I can't really open programs from the start menu since it constantly is selecting everything.
Here's an example of what it's doing: View: https://imgur.com/a/5ZuYZCz
Here's an example of what it's doing: View: https://imgur.com/a/5ZuYZCz