The company that has never been known for selling its operating systems for free has made a rapid transition this year when it announced that it would be giving away its brand new operating system as a free upgrade for every qualified Windows user. In all probability, the reason behind the same can be attributed to the failure of Windows 8 in garnering a unified user base. Every user of Windows 8 or Windows 7 who is currently operating an illegitimate copy of Windows will also be able to upgrade to a copy of Windows 10 for free.
Further the move might be aiming to convert all pirate users of Windows to legitimate users in one clean sweep. Rather than trying to develop anti-piracy measures by spending millions Microsoft seeks to curb piracy in hope that users will shell out money from their wallets for other applications present on the platform. Moreover the move is probably a big one and expensive one too and is a clear indication of the fact that the company is moving towards seeing its operating system not as a product.