Many users report that, the ~BT Windows 10 folder has been appearing on their machine without their permission or agreeing update to Windows 10. BT Windows 10 folder contend installation files for upgrade from Windows 7 or Windows 8.
Microsoft has confirmed this by conducting an inquirer. Other tech site also confirmed this.
“Users have been able to opt-in to the free Windows 10 upgrade if they’re running Windows 7 or 8, but apparently even if they don’t, the files are being downloaded anyway. It’s happening on devices which have automatic updates allowed, which we’d generally recommend to catch the latest security and stability updates for Windows”.
Microsoft sent a response, where they said: “For individuals who have chosen to receive automatic updates through Windows Update, we help upgradable devices get ready for Windows 10 by downloading the files they’ll need if they decide to upgrade. When the upgrade is ready, the customer will be prompted to install Windows 10 on the device”.
But it’s not a good idea for users, who has limited download plan or slower connection, how this Microsoft right to force users to download 3.5GB to 6GB if they did not want to.