Office for Mac is supported on the three most recent versions of macOS. Is ms Office 2019 supported by macOS catalina You will need to uninstall the current version of Office and install the one that was purchased. If I have a corporate version installed due I need to unintall in order to install a new student version? Any attempts to reinstall on the same computer or transfer the product will be left to Microsoft's discretion. This is a single use OEM/OEI license, and is intended to live and die on the initial computer on which it is installed. Unfortunately no, Office 2019 will only work on Windows 10 or Windows Server 2019. Be sure to check your spam folder for the email as they tend to get filtered there. Upon purchase, you will receive an email with your license activation key, as well as instructions to download the software. However, It is intended to live and die on the initial computer on which it is installed. This is a one time fee for a single perpetual license, you will not have to pay any subscription fees. Is this a one time charge? or a subscription that I have to renew?