Install Office 2021 silent on windows 10

If you put xml file and setup file In office root path
And start install from same path
Also You need to be in the same path too.
It will install it as DVD (I do it in office(r)tool)

 

try

Code:

cd /d "%~dp0Office"
call setup.exe /configure configuration.xml

 

This message is absolutely correct. You must uninstall the previous version before installing a new or different version.
And keep in mind that the previous version must be completely removed (including the registry all entries) and then the computer must be restarted.
And it's nothing new, it always has been so.

 

you can make an "uninstall.XML" to uninstall existing Office

Code:

<Configuration>
    <Remove All="TRUE"/>
    <Display Level="Full" AcceptEULA="TRUE"/>
    <Property Name="AUTOACTIVATE" Value="0"/>
    <Property Name="FORCEAPPSHUTDOWN" Value="TRUE"/>
    <Property Name="SharedComputerLicensing" Value="0"/>
    <Property Name="PinIconsToTaskbar" Value="FALSE"/>
</Configuration>

then

Code:

cd /d "%~dp0Office"
call setup.exe /configure uninstall.xml
call setup.exe /configure configuration.xml