Once you completed the steps, check for update and your Office 365 installation should now install the latest version available in the Slow ring, which includes the fix.
The update will eventually roll out to everyone, but if this Command Prompt box flashing quickly on the screen every hour keeps bothering you, it's possible to temporarily enroll your installation of Office 365 to the Slow ring using the following steps to address the issue: How to stop the Command Prompt box flashing quickly 2025, which currently is only available for those who are participating in the Slow ring of the Office Insider Program. However, the fix is included starting with build. It poped up twice as a plane flew overhead and at least once with a zombie very close. Not sure if there are specific events that happen to pop up the command console, but it's often problematic (to say the least). Latest update (not sure if it was 10.3 or the hotfix) introduced this. There is a workaround floating around the internet, but the fact is that Microsoft is aware of the bug, and it has already fixed the problem. Command console keeps poping up by itself.