For those people who reserved an upgrade from Windows 7 or 8.1 to Windows 10, it could already be downloading. What, you were expecting Microsoft to ask you if it was okay to eat up your bandwidth with a nearly 6 GB download? Nope, just like the Windows 10 Updates, Windows 10 upgrade is going to be automatically downloaded. To see if your computer is secretly downloading Windows 10 check Windows Explorer for a folder called C:\$windows.~BT note: this is hidden folder so you may need to go into File Explorer and go to: Organize > Folder Options > View > Show hidden files, folders, and drives. However, not everyone is going to get the Windows 10 upgrade at once:
The flipside to the argument is stealthily downloading Windows 10 to computers over days or even a week means Microsoft can distribute it more smoothly. This is important when it has stated a long term goal of getting Windows 10 onto over one billion PCs. It also reduces the bandwidth crush on launch day had it opted for manual downloads, especially with Microsoft belatedly admitting some users may have to wait weeks.
