How do I turn off this strange navigation tool on my device?

Have you tried pressing the Esc key? Sometimes that works to close out programs like these. If nothing happens when you press it, maybe try the Ctrl+Alt+Del combination to access the task manager. Also, a simple restart might help if you haven’t done that yet. If all else fails, it could be that a touchpad setting got switched on, which might be preventing keyboard inputs from being recognized. Double-check your keyboard lights by pressing Caps Lock to see if it’s detecting any key presses.

It sounds like a frustrating situation! If your mouse is USB, try plugging it into a different port; sometimes that resets it. For Bluetooth mice, switch it off and back on to reconnect. Also, check if your keyboard has a dedicated WiFi button — that might help regain control. What operating system are you using? That could help narrow down the issue.

I found a screenshot of the navigation tool. It seems to limit input options, so it’s likely the cause of your issues. You could try showing a picture of it if that helps someone narrow down solutions. Here's what I got! [includes image link]