Windows has been collecting data for ages now just saying lol And if people are worried about privacy, the internet is the wrong place for you my friend. Plus this is a test version that they offer, so obviously collecting data is crucial to optimizing their OS and working out the bugs before and actual release. Still a lot better then places like Facebook who collect your data to sale it to advertising companies, at least these guys take the data to improve their software.The technical preview is available now.
x86: http://iso.esd.microsoft.com/W9TPI/...06DDBA2/WindowsTechnicalPreview-x86-EN-US.iso
x64: http://iso.esd.microsoft.com/W9TPI/...06DDBA2/WindowsTechnicalPreview-x64-EN-US.iso
Though I would have a good look at the privacy statement before trying it out:
https://insider.windows.com/Home/PrivacyStatement