The new Windows 10, like any new version of Windows, has stirred up its fair share of controversy. It's fast, secure, has a promising new default browser, brought back the Start Menu and overall manages to create a nice blend of the best features of Windows 7 and 8.
Unfortunately, it also brought with it a loss of control over updates and quite a few privacy concerns. From the personal assistant Cortana learning everything about your life to phoning home even when it shouldn't, Microsoft's default settings leave something to be desired. That's why some people are sticking with earlier versions of Windows for now, but that might not help as much as they think.
A few of the latest updates in Windows 7 and 8 include some of Windows 10's tracking features. These are listed as "Diagnostic and Telemetry" tracking, which let Microsoft know what goes wrong with your system or other points of data Microsoft can use to improve Windows in the future.
Most of this information doesn't really endanger your privacy, and Microsoft already has customer experience and troubleshooting tracking built into Windows 7 and 8. Of course, it generally asks before sending information to Microsoft, unlike the new updates.