In a new article, TechSpot explains several loopholes to get a free Windows 10 update. These loopholes have been known for months but it seems Microsoft doesn't really care.
I wrote about the first method in August, it involves a loophole for users of assistive technologies like a screen narrator or magnifier. By heading to the Microsoft accessibility website, you can download an installer that will let you upgrade to Windows 10 for free. There are no checks whether you are actually using these assistive tools.
The second method involves entering a valid Windows 7 or Windows 8 product key into the Windows 10 installer, or later in the operating system. This loophole was also discovered in August but it seems Microsoft still wants to get as many people as possible to Windows 10.