update reverse

Hello everybody

I updated the Zoom client on a user's laptop; however, it comes back to an older version the next day.

I uninstalled Zoom ver. 5.8. Download and reinstall the new version 5.12

The next day, the user complaint that he can't log in because Zoom roll back to 5.8

I uninstalled & reinstalled it 3 times.

Does anybody know how to resolve it?

Thanks.

Nam