Windows 10, while a great overall system, contains a number of highly controversial features that collect information about users and their activities on a Windows 10 PC and transmit the data back to Microsoft. With no proper warning, no concise privacy policy, and most importantly, no official way to completely disable logging, Windows 10's new spying features are setting off alarms among data privacy advocates around the world. Rolling back your Windows 10 upgrade to Windows 7, 8 or 8.1 doesn't solve the problem, as Microsoft is actively pushing the same monitoring features to those systems via Windows Update. If you have legitimate privacy concerns about Windows 10, you really need to take matters into your own hands. What Windows 10 knows about you and how the Windows 10 Privacy Tool can help Windows 11 collects an amazing amount of information about its users, and Windows 7, 8, and 8.1 will follow this trend with newly released Windows Updates. The following information is collected and sent to Microsoft: Everything you type on the keyboard (Windows 11 has a built-in keylogger) Eavesdropping: Windows 11 can listen to your microphone and activate your webcam in the background without you realizing it (no, this is not a joke) Logins and passwords for websites and social networks Fragments of email messages, chats and text messages (including those you send and receive via crypto-messengers like Telegram) Your geographic location coordinates (GPS, AGPS, or approximate IP-based coordinates) Your complete web browsing history Your search queries Wi-Fi access points and their passwords List of installed applications Information about your listening preferences, including the names of the music tracks you listen to Call logs Your calendar entries, events, and meetings Your address book BitLocker escrow keys: if you encrypt your hard drive or eMMC storage with BitLocker, recovery keys are automatically uploaded to Microsoft OneDrive; Microsoft's privacy policy allows