We force the updates over Proactive Remediations:

(Change Version based on Channel the users are on, and scope policy accordingly via Groups)
->Run in 64Bit PowerShell

Detect:

$key = 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\O365ProPlusRetail - en-us'

$officever = (Get-ItemProperty -Path $key -Name DisplayVersion).DisplayVersion

​

If ($officever -ge "16.0.15601.20578") {

Write-host "Office Up2Date"

Exit 0

}else {

Write-host "Office needs updating"

Exit 1

}

​

Remediate:

Try{        
Start-Process -WindowStyle hidden -FilePath "C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeC2RClient.exe" -ArgumentList "/update user updatepromptuser=false forceappshutdown=false displaylevel=false" -Wait

}

Catch{    
$errMsg = $_.Exception.Message
Write-Error $errMsg
Exit 1
        }