After a concerned Windows user wrote in to the Inquirer, reports blew up this week that Microsoft is downloading Windows 10 installation files onto users’ machines without them reserving a copy of the new operating system. We reached out to the company to set the record straight; we confirmed that this occurs when Automatic Updates is enabled, and that this is nothing new — it’s been happening since Windows 10 launched on July 29.

Source: Microsoft will download Windows 10 even if you don’t want to upgrade — here’s how to stop it

3GB is a huge amount of bandwidth, especially if you’re on a metered connection!