My wife is a retired teacher. In 2014 the school district gave each member 5 free downloads of Microsoft Office. She used one and I used one. Today, her Office will open in read only mode. Mine still works fine. Chatted w support and they said neither of us have a valid license and we would have to buy one. I thought when you got a license for a version (Word 2016), it was good to use forever. Support guy said that was true, but then said we have to buy. My 2013 still works and I even have a Word 2000 version that still works. I don't get it.