From the following Slashdot posting:
http://tech.slashdot.org/story/15/09/10/148238/microsoft-is-downloading-windows-10-without-asking
[h=2]Microsoft Is Downloading Windows 10 Without Asking[/h]”Microsoft, having learned nothing from Apple and the U2 album, have started downloading Windows 10 as part of Patch Tuesday for Windows 7 and 8 users. For people on a 32GB flash drive tablet, that’s a big chunk of space taken up with something that they didn’t ask for. Microsoft admits to doing this, but users are not happy. Way to look needy, Microsoft.”