Office 2019 being overwritten by office 2016

Upgrading to the "latest and greatest" isnt always an option for "non-profits" and even with not-for-profit discounts, the costs of subscription based services is prohibitive when compared with discounted one time license purchases that give functionality for several years, or in instances where we dont need users licened, but rather the terminals being used by multiple users.

O365 also lacks some features if not installed directly on the computer itself. The desktop versions have numerous scenarios making them desirable over web bases subscriptions, such that I'd sooner buy Discrete Offce 2022 licenses as the upgrade, Not all of us want/appreciate the "software as a subscription service" model.

Thanks for the "suggestion" but its not at all helpful considering its a bad update that is causing the issue, not an end of life problem, which would just as easily have occured to a current product line like Office 2022. Why would it ever be acceptable that the "solution" would be to "Buy something" when its a bad update that broke a working product? Modern day "EOL" is just built in obsolessence by another name.

And its impacting all Office apps, not just the outlook mailbox. its one symptom of many.

I am suffering from this same issue. It is impacting computers with windows 10 suddenly as of the recent Microsoft Patch Tuesday on November 12 2024.

This is absolutly rediculous.

I have a proper MS office 2019 Install Build with XML files configured that has been unchanged for over a year since we did a mass upgrade from 2016.

However this is happening on machines that never had MS office 2016 installed at any point.

Why would Office 2019 Be displaying such a message for an upgrade for a product that has never been installed on a give system?

Uninstall and Reinstall does not resolve the issue for more than a few hours.

Repair options do nothing to resolve the issue. I have scoured the internet and forums for days trying to find a solution that doesnt require a complete nuke and pave of a system.

Additionally, simple uninstall reinstall is producing the following "security access" error codes

"Access denied to installation source" on uninstall

Error Code 30015-23 (5)

"Something when wrong" on install

Error Code 30016-22

Despite these warnings, the install proceeds and the office apps function for a while.

Then the error returns, and ALL APPS STOP FUNCTIONING

Word, Excel, Powerpoint quit unexpectedly on launch when trying to double click to open relevant files

Outlook itsell doesnt load signatures, will not send or receive mail.

The ONLY fix has been to completly reimage the system with a fresh Win 10 install, then reinstall office from the same configuration.xml file as always.

Then I can restore the users Windows profile and settings from a backup.

The issue does not appear to reoccur after this.

Microsoft, YOU NEED TO FIX THIS

it is costing me multple hours for each impacted computer of time to resolve this through this asinine process which is a direct result of a bad update you released.

I have since disabled our Domain Group Policy from pushing any Microsoft Product updates, but I am still getting this issue occuring on computers that dont reboot in time to get the updated GPO.

***Below did not resolved all instances*** One user has reported the problem has re-occurred again.
Might be worth testing as a solution
Solution to try provided by Microsoft through a support ticket.

We had been using the same built install for almost 5 years.

Microsoft Support engineer walked us through the Office Deployment process to make a .xml configure file. Use the Microsoft deployment site to generate your .xml file and download it. Then place the .XML in a new build folder, that also contains the deployment files. Run the build command- setup.exe /download Configuration.xml to download a new 2019 build, which included all the updates and patches built in the install. Then create a .cmd file that executes your installation. Ours included setup.exe /configure Configuration.xml, for the installation CMD file placed in the same directory.

1. Using the Office Deployment Tool to build a new local 2019 install folder to save and use.

Deploy Office 2019 (for IT Pros) - Office | Microsoft Learn

Using the new install-
On a new computer, of course no uninstall is required. New install works perfect on a new computer. However, on already screwed up computers there was a Microsoft scrub tool recommended. The scrub tools works but leaves you with the new install still generating 2 errors messages near the end of the install. It still installs and fixes the original problem.

Here is the uninstall recommended for removing office first.

SetupProd_OffScrub download

Uninstall Office from a PC - Microsoft Support

Our original problem was the "upgrade in process". This is problem seems to now be resolved.
All our computers running Office2019 have started to experience the same issue.
Upgrade in Progress
Your mailbox is currently being optimized as part of upgrading to Outlook 2016. This one-time process may take more than 15 minutes and performance may be affected while the optimization is in progress.

This would break outlook from sending email, or not open at all with a not implemented error. It would also break Excel from opening files from a network location.

Hi Jared, which version of Office 2019 are you running? Open a document>File>Account>This will show you which version of Office you have. You can also run updates from there

First port of call when there is a problem with Office is to run a repair>Use Quick repair first. Online repair reinstall Office. But it may be better to scroll down the page of the article and run the Repair Tool. Ignore that it says for Microsoft 365 it works for perpetual versions.

Same issue here, any resolutions?