Microsoft is part of NSA’s mass surveillance program “PRISM”:
https://en.wikipedia.org/wiki/PRISM_(surveillance_program)

Microsoft informs the NSA about bugs before fixing them:
https://archive.is/OBGB1

Microsoft openly offeres cloud data to support PRISM:
https://archive.is/tW6fu

Microsoft has backdoored its disk encryption:
https://archive.is/2XIvX · https://archive.is/qLRZx

Windows snoops on the users’ files, text input, voice input,
location, contacts, calendar records and web browsing history,
even after related settings are turned off:
https://archive.is/Zny36 · https://archive.is/sz1nt
https://archive.is/g3QdQ · https://archive.is/ko469
https://www.youtube.com/watch?v=nHA2s04Vtdc

A Traffic Analysis of Windows 10:

Keypoints: Windows 10 has a keylogger and uploads all your
keystrokes every 5 minutes. Everything you type in Edge or
Cortana is sent to Microsoft, along with any media files it
finds. When webcam is enabled, 35MB of data goes to Microsoft.
Even with Cortana disabled/uninstalled, Windows 10 sends all
microphone audio to Microsoft, when the computer is idle.
https://archive.is/QnTTA
https://archive.is/eZKc9

Windows 10 sends desktop screenshots straight to Microsoft:
https://d2.maxfile.ro/rwspylwbwo.webm
https://www.youtube.com/watch?v=xDeHqiydk4A

Windows 10 scans for illegal/pirated software:
https://archive.is/vhjwm
https://archive.is/2jehd

Microsoft proudly presents surveillance statistics:
https://archive.is/MB0Yy

> Over 82 billion photos viewed.
> Gamers spent over 4 billion hours playing PC games.
> 44.5 billion minutes/month spent in Microsoft Edge.
> Over 2.5 billion questions asked of Cortana since launch.
> Windows 10 now active on over 200 million devices.

P.S.: If you want a good, free and safe OS, install a GNU/Linux one. 😉
Look at https://distrowatch.com

Thank you to https://twitter.com/0xUID for the post