The next step is to create a startup script that will install %BRAND_OFFICE2016_SHORT% on a computer. You don't want the ...

The next step is to create a startup script that will install %BRAND_OFFICE2016_SHORT% on a computer. You don't want the startup script to install %BRAND_OFFICE2016_SHORT% if %BRAND_OFFICE_SHORT% is already installed on the computer, so the script must detect if there is a previous installation of %BRAND_OFFICE_SHORT% installed and, if so, not proceed with the installation.