What Windows 11 Diagnostic Data Collection Actually Transmits To Microsoft
Windows 11 diagnostic data collection is a background system that sends crash reports, device performance details, and app usage stats back to Microsoft to help fix bugs and improve system stability. Every time a program freezes or your PC crashes, Windows bundles a small report with up to 150 different telemetry parameters to help engineers track down the problem.
Microsoft splits this telemetry into two main levels: Required basic data, which keeps your PC secure and updated, and Optional full data, which includes website browsing history and app activity. You can check or change these privacy settings anytime through the Windows Settings app to control exactly what information leaves your computer.
Windows 11 diagnostic data collection transmits information about your computer hardware, network connection, app usage, performance, and crash reports. Microsoft splits this into required data for security and optional data that includes app interaction, device settings, and browsing history to help fix bugs and improve the operating system.
The Different Tiers of Diagnostic Data Collection
Windows 11 diagnostic data levels include two main choices for everyday users: Required data, which sends only basic hardware and security info to keep your computer safe and working, and Optional data, which shares extra details about how you use apps and websites to help Microsoft fix bugs and improve future updates.
- Required Diagnostic Data: This is the bare minimum amount of data Windows needs to keep your device secure, up to date, and performing properly. It includes basic information about your device setup, its capabilities, and whether features are working correctly.
- Optional Diagnostic Data: This level includes everything in the required data tier, plus extra details about how you use your apps, website browsing history, and advanced error reports. This extra information helps Microsoft fix rare bugs and improve overall product quality.
What Data Is Actually Collected and Transmitted?
Let us look closer at the specific categories of information that Windows 11 transmits to Microsoft servers during daily use.
Device, Connectivity, and Configuration Data
Device, connectivity, and configuration data covers your computer’s hardware specs, display settings, and network setup. Windows collects this info to figure out if your system can handle updates and to make sure your hardware devices work properly with your computer without crashing.
- The processor type and memory size of your computer.
- Basic settings like your screen resolution and regional preferences.

Settings › System › Display - Network connection type, such as whether you use a home Wi-Fi network or a wired Ethernet cable.

Settings › Network & internet › Airplane mode - Connected peripheral devices, like printers, keyboards, and external monitors.
Product and Service Usage Data
When you use Windows apps and built-in features, Microsoft collects up to 100 different types of data on how you interact with them. Microsoft uses this information to fix bugs and improve your experience, tracking specific actions like how often you open an application, how long you stay in a menu, and which buttons you click within the Windows operating system.
- How often you open specific apps and how long you use them.
- Whether features load successfully or freeze.
- How you navigate through the Start menu and system settings.

Start Menu
Product and Service Performance Data
Performance data helps Microsoft understand how well your operating system runs. This includes:
- System response times when you open programs.
- Memory and processor usage peaks.
- Details about system crashes, error codes, and the state of your computer right before a problem occurred.
Software Setup and Inventory Data
This data tracks what software is installed on your machine. It includes:
- A list of programs installed through the Microsoft Store and traditional desktop apps.
- Version numbers for installed security updates and device drivers.
- Compatibility status for installed software.
Browsing History and Inking, Typing, and Speech Data

If you choose to share optional diagnostic data, Windows may also collect information about your web browsing history within Microsoft Edge, as well as samples of your handwriting, typing, and voice commands. Microsoft uses this data to improve features like text prediction, dictation accuracy, and search suggestions.
How Microsoft Protects Your Privacy
Microsoft protects your privacy by stripping personal details like your name, email address, and open files from your diagnostic logs before they leave your computer. Windows swaps out these identifiers with a random ID number so the technical data sent back to Microsoft cannot be easily linked back to you.
Microsoft applies strict security controls to the storage centers holding Windows 11 diagnostic logs. Microsoft restricts access to the diagnostic data strictly to authorized personnel who need the diagnostic logs for software development and system troubleshooting.
How to Control Your Diagnostic Data Settings
You can easily control your diagnostic data settings in Windows 11 by opening your privacy options and switching your sharing level from optional down to required. This quick change limits what your computer sends to Microsoft while still letting your system receive important security updates.
Adjusting these settings takes just a few clicks:

- Click the Start button and open the Settings app (the gear icon).

Settings - Select Privacy & security from the left-hand menu.
- Click on Diagnostics & feedback.
- Look for the section labeled Diagnostic data.
- Choose your preferred setting by selecting either Send optional diagnostic data or Send only required diagnostic data.
How to View the Diagnostic Data Your PC Sent
You can view the exact diagnostic data your PC sends to Microsoft by opening your privacy settings and launching the built-in Diagnostic Data Viewer app. This free tool lets you search through the actual technical logs, crash reports, and hardware info leaving your computer.
- Open the Settings app from your Start menu.
- Go to Privacy & security and select Diagnostics & feedback.

Settings › Privacy & security › Diagnostics & feedback - Click on the Diagnostic data viewer option.
- If you do not have the viewer installed, Windows will prompt you to download the free Microsoft Diagnostic Data Viewer app from the Microsoft Store.
- Once installed, open the app to search through and read the exact logs sent from your computer.
Summary
Windows 11 diagnostic data collection sends technical logs about your hardware and app performance to Microsoft to keep your computer secure and stable. While Windows collects basic data by default, you can easily change your settings to share less information and use a built-in tool to review everything your PC sends.
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About the Author
Richard
Tech Writer, IT Professional
Richard, a writer for Geek Rewind, is a tech enthusiast who loves breaking down complex IT topics into simple, easy-to-understand ideas. With years of hands-on experience in system administration and enterprise IT operations, he’s developed a knack for offering practical tips and solutions. Richard aims to make technology more accessible and actionable. He's deeply committed to the Geek Rewind community, always ready to answer questions and engage in discussions.
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