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How do you trigger an Office update without opening an office application?

I need this to update Office after an offline install of o365, specifically in instances where Office needs to be updated between installing o365 apps and actually deploying the system.

I know you can do this by opening an office app, then going to File > Office Account > Update Options > Update Now, but I am trying to avoid triggering the Office activation / trial countdown before actually needing to sign a user in.

***edit: I found a solution and posted it below. Please feel free to contribute additional solutions especially if this does not work for older versions of Office.

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From command prompt:

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

This should trigger the Update GUI.

You can also do this silently by adding displaylevel=false forceappshutdown=true:

"C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeC2RClient.exe" /update user displaylevel=false forceappshutdown=true

source: TechNet Blog: Office365 and its associated command-line and switches

  • 1
    I added an answer with some additional commands that are handy. – joeqwerty Aug 13 at 0:22
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If you need to change the Office update channel for a client to switch them to the monthly update channel you can run the followng:

“C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeC2RClient.exe” /changesetting Channel=Current

If you need to do this for a group of computers you can use psexec and a text file with the computer names like such:

psexec @computers.txt -d -n 3 cmd /c “C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeC2RClient.exe” /changesetting Channel=Current

AND

psexec @computers.txt -d -n 3 cmd /c “C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeC2RClient.exe” /update user updatepromptuser=false forceappshutdown=true displaylevel=false

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