Windows 10
Microsoft Windows 10 is the latest edition of Microsoft Windows, announced on Sept. 30th 2015. It was released in August of 2015 and those who have a valid copy of Windows 7 8 or 8.1 are eligible for a free upgrade for an entire year following the release date.
Security and Privacy Concerns
Windows 10 may be a free upgrade for most current Windows users, but as outlined in many YouTube videos, there are major security and privacy breaches in not only the operating system itself, but the EULA or End User License Agreement which states that Microsoft has access to not only the metadata of your files, but their full content, how often you access them, for how long you view them, and when, just for starters. There are techniques to disable obvious built-in spyware on part of Microsoft within the operating system, but as Windows is a closed-source operating system, no user no matter their skill at computing can be sure of their privacy protection. At this point in time, most conservative and libertarian (as well as classical liberals and even constitutional progressives) should avoid Windows 10 at all costs. Migrating to GNU/Linux is a viable and sensible option if you care about your rights to privacy and security on your personal and work computers.