Windows 11 Privacy: What Microsoft Collects and How to Protect Yourself
Most people do not realize how much data Windows sends out by default. This article explains what is collected, why it matters, and practical steps to reduce it. Educational first, then solutions.
What Microsoft Collects on Windows 10 and 11
Microsoft groups Windows signals into two broad sets: required diagnostic data and optional diagnostic data. Required signals include basic device identifiers, hardware and OS version, reliability and update readiness, plus limited error reporting. Optional signals include more detailed app usage, feature interaction, and enhanced crash reports. Users and admins can review outbound events with the Diagnostic Data Viewer and control many settings from Privacy and Security.
- Required diagnostic data includes basic device information, OS build, drivers, reliability, and Microsoft Store basics.
- Optional diagnostic data can add application usage, feature interactions, and deeper error details. It also supports personalized tips and recommendations when tailored experiences are on.
- Apps and services such as Edge, Bing, OneDrive, Defender SmartScreen, and Microsoft 365 generate their own network calls and telemetry on top of the core OS.
Why This Matters for Privacy
Telemetry can reveal patterns about how you use your computer, which apps you open, when the device is active, and what features you search. Even when content is not collected, the metadata can still be sensitive because it tells a story about behavior. Independent investigations have highlighted concerns about transparency and consent, especially in earlier Windows 10 releases. Browser-level measurements show that default configurations can also contact multiple endpoints in the background.
Why Most People Do Not Know This is Happening
- Language such as diagnostics, personalization, and experience improvement sounds helpful, so most users accept defaults.
- Visibility is low. The Diagnostic Data Viewer is available but rarely opened. Without it, outbound events are not obvious.
The result is simple. You cannot protect what you do not know exists.
What You Can Do Right Now
- Open Settings → Privacy and security → Diagnostics and feedback. Turn off optional diagnostic data and turn off tailored experiences.
- Launch Diagnostic Data Viewer and review what has been sent. Clear history when finished.
- Review Edge settings. Disable personalization and reduce background services you do not need.
- Audit your Microsoft account privacy dashboard: clear location, search, and voice data you do not want stored.
How Augusta Technology Solves This
- Disable telemetry and tracking services where possible.
- Turn off integrated AI features (Copilot), remove online search hooks, and minimize cloud tie-ins.
- Reduce or replace Edge and Bing integrations, while keeping security features intact.
- Enforce privacy via policy and registry so settings survive updates.
- Offer streamlined builds such as Tiny11 for power users who want fewer components and lower overhead.
- Keep systems secure and fully patched without excessive background communication.
Serving Washington, Augusta, and the surrounding Missouri communities.
Call: 636-231-5555 | Web: Augusta-Tech.com
References and Further Reading
- Microsoft Learn: Optional diagnostic data for Windows — https://learn.microsoft.com/en-us/windows/privacy/optional-diagnostic-data
- Microsoft Learn: Required diagnostic events & fields (Windows 11 24H2) — https://learn.microsoft.com/en-us/windows/privacy/required-diagnostic-events-fields-windows-11-24h2
- Microsoft Learn: Diagnostic Data Viewer overview — https://learn.microsoft.com/en-us/windows/privacy/diagnostic-data-viewer-overview
- Microsoft Learn: Configure Windows diagnostic data in your organization — https://learn.microsoft.com/en-us/windows/privacy/configure-windows-diagnostic-data-in-your-organization
- CNIL (France) formal notice on Windows 10 — https://www.cnil.fr/sites/default/files/atoms/files/resolution_2016-185_to_make_public_formal_notice_microsoft.pdf
- Dutch DPA investigation summary (Windows 10) — https://www.autoriteitpersoonsgegevens.nl/uploads/imported/public_version_dutch_dpa_informal_translation_summary_of_investigation_report.pdf
- Douglas Leith, Trinity College Dublin: “Web Browser Privacy: What Do Browsers Say When They Phone Home?” — https://www.scss.tcd.ie/Doug.Leith/pubs/browser_privacy.pdf


