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. While the apps will continue to function, they no longer receive security updates or bug fixes, which may pose a risk to your data according to Microsoft Support : The ISO is approximately 3.30 GB to 3.5 GB Microsoft Q&A Do you have a valid product key
: Once installed, open any application (like Word). You will be prompted to enter your Product Key to activate all features. Critical Technical Notes Deploy Office 2019 (for IT Pros) - Microsoft Learn en-office-professional-plus-2019-x86-x64-dvd-7ea28c99.iso