I bought a copy of Microsoft Office off EBay two years ago and installed it on my laptop and it has run without any problems. I bought a new laptop and sold the old one so I uninstalled from the old one so I could reinstall on the new one. When I tried to install, I got an error message that the product key was invalid. I called customer support and gave them the key. I was asked where I got the software and told them EBay. They told me I, and others, were sold developers copies which were not to be sold. When Microsoft found out, they blocked the product key on all the copies. Since it's been two years, I am basically out of luck on getting any money back from ebay or the seller. Lesson learned about buying software from ebay at greatly discounted price.
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