Installation Instructions - Install Office 2019 Pro Plus - Run OfficeRTool.cmd then Run: [C] CONVERT OFFICE RETAIL TO VOLUME after converting RETAIL to VOLUME run: [K] START KMS ACTIVATION ...or use some other KMS Activator Mounting an ISO Image in Windows 8, 8.1 or 10 > Right-click an ISO file and select the ?Mount? option. > It will create virtual hard drive image files. > Just like your C drive and D drive. Microsoft Office 2019 is the current version of Microsoft Office, a productivity suite, succeeding Office 2016. It was released to general availability for Windows 10 on September 24, 2018. Some features that had previously been restricted to Office 365 subscribers are available in this release.