Windows 10

[8-Bits]

If you read the Win10 EULA it is very clear the MS will never charge for upgrading to Win10 from Win7 or Win8.x (or on a newly purchased device) on the current device it is installed on. The only unknown at this time is what they will charge for new installs after 12 months.

With respect to sharing personal information with MS you can either opt out when you install Win10, or change the settings at any time.

I would suggest that everyone decide to install Win10, or not, based on their opinion of the OS's capabilities and not FUD.