Problems updating microsoft office
If you don’t want computers installed with Office 2019 to connect to the Office CDN to get updates, you can configure Office 2019 to get updates from a shared folder from within your internal network.
To minimize the size of the updates that need to be downloaded, we recommend that you keep Office 2019 up to date.
For example, if you're updating from the September or October version to the November version.
But if you're updating a much older version of Office, such as from the June to November version, binary delta compression won't be available.
If network connectivity and other considerations based on your organizational requirements aren’t an issue, we recommend that Office 2019 is updated automatically from the Office CDN.
Updating from the Office CDN is the default, so there’s nothing extra you need to do and it’s an easy way to keep Office 2019 up to date.
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To do that, open any Office app, such as Word, and go to File Update Now.