Mouse movement pops various apps back to Desktop

Occasionally a slight mouse movement mysteriously switches me from various apps back to the Desktop. If I nudge the mouse again, I'm back in the app (and any keystrokes or actions I took while thinking I was in the app, but the Desktop was displayed, still occurred in the app). This has happened in several apps, but not any Office apps, so I consider it a Win 10 issue (probably another switching feature that I really don't want or need). The mouse has also worked fine for years, and this problem arose after upgrading to Win 10. Any advice to get rid of this frequent annoyance would be greatly appreciated!!

philpanz said:

Occasionally a slight mouse movement mysteriously switches me from various apps back to the Desktop. If I nudge the mouse again, I'm back in the app (and any keystrokes or actions I took while thinking I was in the app, but the Desktop was displayed, still occurred in the app).

Are you letting the mouse drift into the bottom right of the screen? Hover over the area at the far end of the taskbar and you'll get a Peek preview of the desktop (not switching, for that you need to click there). This behaviour is optional and can be turned on/off in the Taskbar Settings.

That fixed it. Appreciate the help. :)