Your current operating system (OS) must be up-to-date with Windows Updates before you can install the new software. Locate the application you want to remove.įollow the instructions for removing the application. Depending on the version of Windows you are using, choose one of the following: Old or trial versions of Microsoft Office Professional Plus 2013.Īny new versions that you have tried to download/install unsuccessfully. Installation Removing Old or Trial Versions:īefore starting the download of Microsoft Office Professional Plus 2013, you must uninstall any old or trial versions you may still have installed on your machine. This document will guide you through the installation and activation of Microsoft Office Professional Plus 2013.