Update error code 30088-27 Office 2021 what to do to get corrected????

I really never use the Help, but thought to check it after someone else had a problem here. On the other two machines that update properly, Help works fine. I'm wondering if there might be a correlation here.

As just one datapoint, Help works properly on my machines but Update does not.

Now I'm totally confused. I just did another Online Repair and now everything is working properly. The last Online Repair installed the new version, but did not resolve the problems. This one retained the same new version, but now the update button seems to be working and Help seems to be working. I'm not going to argue with success, even when it makes no sense.

I have to confess that I am a bit lost in the thread.

Besides my act of God, has anyone find anything that works that does not require go to a previous version and stop updates?

Before my last Online Repair (did two of them for this update), I disabled the Privacy Settings, rebooted and then re-enabled all of them except the Send Me Ads one, rebooted again and then did another Online Repair. After that, everything seems to now be working correctly.

I have to confess that I am a bit lost in the thread.

Besides my act of God, has anyone find anything that works that does not require go to a previous version and stop updates?

Before my last Online Repair (did two of them for this update), I disabled the Privacy Settings, rebooted and then re-enabled all of them except the Send Me Ads one, rebooted again and then did another Online Repair. After that, everything seems to now be working correctly.

OK. I need to get this straight.

1. You disabled the Privacy Settings FIRST, rebooted and then did an Online Repair.
2. Immediately after the first repair, you re-enabled all (except Ads), rebooted again, and did another Online Repair.

Is that the correct sequence?

Updating to latest version of Office 2019 (released 01-AUG-2024) using the elevated command prompt technique seems to solve the problem.

Open an administrative command prompt and then enter the following command...

"C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeC2RClient.exe" /update user updatetoversion=16.0.17830.20138

depending on your Office version, the "updatetoversion=" number may differ.

I just more or less did that as well, and it worked; what I didn't do was reboot.

Added: I'm on Win 11 Pro and use the Office 365 Home Subscription, paid annually.