Installing Update Window problems

Every time I start a meeting lately a dialogue box saying "installing updates" appears.  The little progress green light at the bottom of the box stalls and does not complete even if I wait a long time.  I have had to simply move this box to the bottom of my screen and go on with the meeting.  But now I have a dozen or more of these boxes at the bottom of my screen even when I'm not on zoom and can't delete them and they keep coming every new meeting.  What to do?????

Thanks 🙂

Andrew