Hi @Eric LUX
Based on my knowledge, there is no existed newest MSI version of Office to download.
For Volume licensed Office 2016, you may search "Oputil.vbs script" online and download this script.
Then download the newest .msp files (Include Non-security and "Security" updates from https://www.catalog.update.microsoft.com/home.aspxaccording to the kb number shown on: https://learn.microsoft.com/en-us/officeupdates/msp-files-office-2016#list-of-all-msp-files, put them together with "Oputil.vbs script" script in a same folder.
- Open cmd, go to the patch folder, use cd command to locate to this folder
- Then run
cscript oputil.vbs /apply patch
- All patches in the folder will be installed automatically