Wow, that's some extended memory check. A little more complicated than the little memory check programs I wrote in the 70's. No problems found. My solution: tap the mouse button several times and it stops.
Sorry, forget to mention it's a brand new HP all-in-one with 8.1. I did several adjustments involving pagefile, etc - someone said it was a memory problem (I have 8gb). I don't recall if it happens with other programs. It looks like it's switching between the desktop view and the running...