Offline installer standalone setup of Office 2019 Professional Plus v1903.11425.20204. Office 2019 Professional Plus Apr 2019 Overview. MS Office is an impressive office suite that was introduced many years ago and since then it has become most popular and most widely used office suite all around the world. To install either the 32 or 64-bit version of Office 365 or Office 2019, follow the steps in Install Office on a PC. Read more in the Download and install or reinstall Office 365 or Office 2019 on a PC or Mac article. I created a DVD from the ISO and ran the "Setup" on the DVD. It didn't ask me to install either 86 or 64. eRPzb.