Sep 15, · To start the download, click the Download button and then do one of the following, or select another language from Change Language and then click Change. Click Run to start the installation immediately. Click Save to copy the download to your computer for installation at a later time. Note: The steps to install the , , or versions of Office Professional Plus, Office Standard, or a stand-alone app such as Word or Project might be different if you got Office through one of the following: Microsoft HUP: If you bought Office for personal use through your company, see Install Office through HUP. Volume license versions: If you work in an organization that manages.