Microsoft listed the Windows 10 end-of-life date on their site when the OS was released in 2015: https://web.archive.org/web/20151220135519/http://windows.micro

Microsoft listed the Windows 10 end-of-life date on their site when the OS was released in 2015: https://web.archive.org/web/20151220135519/http://windows.microsoft.com/en-us/windows/lifecycle https://web.archive.org/web/20151220135519/http://windows.mi... I think it's more likely that the devrel guy who made that remark was just being overly enthusiastic about the OS getting feature updates over time. For some computers, that policy meant that they didn't even get the promised 10-year support duration, as the footnote on that page mentions: > Updates are cumulative, with each update built upon all of the updates that preceded it. A device needs to install the latest update to remain supported. Updates may include new features, fixes (security and/or non-security), or a combination of both. Not all features in an update will work on all devices. A device may not be able to receive updates if the device hardware is incompatible, lacking current drivers, or otherwise outside of the Original Equipment Manufacturer’s (“OEM”) support period. Update availability may vary, for example by country, region, network connectivity, mobile operator (e.g., for cellular-capable devices), or hardware capabilities (including, e.g., free disk space).