OfficeBackgroundTaskHandlerRegistration Flashes a black CMD window every hour

This is an annoying issue I’ve been trying to find the answer to for a couple of days.

I get a quick flash on my screen with a black box which looks like a command window. I finally had this happen on a slow enough computer where I could see where it was running from. See below.

To fix this issue, do the following:

  1. Open task scheduler from the start menu
  2. Find Microsoft Office under tasks
  3. Disable OfficeBackgroundTaskHandlerRegistration

A fix from Microsoft on this issue is underway.