I purchased windows 7 and I purchased DayZ. I want my money back for DayZ on principle. This is infuriating that a game I purchased can no longer run on a system it was initially created to be run on. I definitively will NOT change my operating system and should be given my money back. People that think this is OK and should be an industry standard in forcing upgrades on operating systems are wrong and total sheep. If you want to run a game on windows 8, 10, 12 13 + only that is fine , but you cannot take away software that someone legally purchased by changing the operating system requirements. As you can tell I have a strong stance on this and can't believe what companies think they can get away with because most of the population will do whatever they say. It is my computer and my software which I paid for so give me a refund or let me play on the operating system it was designed for.