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Microsoft 365 and Office | Install, redeem, activate | Other | Other
Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
This seems to work. There are all sorts of solutions put out there that involve things like editing the Registry. Here's a much easier fix that seems to have worked for me (and this is from The Geek Page https://thegeekpage.com/how-to-disable-the-artificial-intelligence-ai-host-feature/).
First, the obvious: delete the AI executables from the OFFICE folder:
ai.exe
ai.exe
aitrx.dll
Second - this is incredibly easy. Deleting the executables does not completely work because Office automatically updates itself with new copies of those files.
Since the AI Host runs when you use an Office app:
Disable the Office app updates.
To do this, open any Office application, like Word.
– Click the “File” menu and then the “Account” menu item - this may be under the "More..." menu item, in which case click "More..." and then click "Account"
– There, click on “Update Options”, which brings up a popup menu - on the popup menu, set that to “Disable Updates” to disable Office updates for all Office apps