My E5-511P shows a block then circle image in place of the pointer shortly after bootup and often before Windows 10 opens. This phenomenon happens more often than not. I have tried to use Esc, Ctrl Esc, Alt Esc, and Ctrl Alt Esc, but there is no correlation to its disappearance and return of the pointer that I can see. While this is happening the mouse touchpad has no effect on its position, which is on left of center usually above the mid-line horizontally. Most often it seems that I have merely to wait it out. It always does go away and the pointer returns, allowing normal to quasi-normal functioning. Note - this phenomenon existed when I ran Windows 8.1. In both environments the Ctrl key would show where the block/circle was with the usual diminishing rings.
What you may ask is quasi-normal functioning, it is another matter that arises frequently where the pointer seems to change from a mere highlighter to a grab and move the screen function. This, perhaps with merely hovering my finger over the touch pad. Yet I recall rejecting something similar in my setup once. If I tap the mouse pad, this causes the pointer to revert to normal mouse action, but some of the text is often left highlighted.
Any similar experiences? Any suggestions how to rectify?