

The Windows 10 ISO direct from Microsoft is 3.8 GB for the 64-bit version, with the in-place free upgrade package roughly somewhere near that figure - keep in mind the upgrade to Windows 10 also necessitates the download of separate driver packages for an updated driver.

New concerns with the way that Windows 10 enforces automatic download and installation of updates for non-Enterprise SKUs is turning a free update into a costly endeavor for some users. Additionally, changes in the default behavior in Windows 10 and new requirements for sharing telemetry and analytics data with Microsoft have made Windows 10 a controversial update. Microsoft’s free upgrade to Windows 10 for users of Windows 7 and Windows 8 has not been without complications some users are getting stuck in a reboot, or are unable to access the Windows store or app updates, among other issues. Some Windows 10 users who connect to the internet on slow, data-capped plans may incur costs as a result of downloading system updates. Windows 10 updates potentially costing users on data-capped internet plans
