HomeNewsWhat's New: Windows 10 Insider Preview Build 19577

What’s New: Windows 10 Insider Preview Build 19577



Microsoft has revealed Windows 10 Insider Preview Build 19577 to Fast ring insiders, that includes diagnostic data changes in Settings and the new PowerToys 0.15.1.

This Windows 10 Insider update also includes more new icons especially for Windows Security, continuing the optional updates experiment with drivers, as well as other features, improvements, and numerous fixes.

If you’re a Windows Insider in the Fast ring, you can update to the Insider Preview Build 19577 by going to Settings -> Update & Security -> Windows Update and checking for the latest update.

What’s New in Windows 10 Insider Preview Build 19577

Change of Diagnostic Data in Parameters

As part of Microsoft’s initiative to improve data visibility and control, there will be some changes to the Settings application and Group Policy settings that will appear in Windows Insider builds starting this month. Basic diagnostic data is now called mandatory diagnostic data, and full diagnostic data is now optional diagnostic data. If you are a business customer and want to send additional diagnostic data, then more detailed group policy settings are also provided to configure the data that has been collected in your organization. Microsoft will release more detailed information about the new policies as we approach the release of the retail version. In the meantime, please refer to the Microsoft Privacy Report for more information about Microsoft’s data collection methods.

Note: Please ensure that your device is installed in “Full” before upgrading to the 19577 version. You will not be able to operate future flights if your diagnostic level is set to “Enhanced”. PCs connected to the AAD/domain and set to “Enhanced” are blocked from participating in the 19577 assembly.

More New Icons: Windows Security

Microsoft continues to implement updated icons for many applications built into Windows 10. In today’s version, the Windows Security Icon has been updated to reflect the new design principles presented here by the Microsoft development team. Unlike many apps built into Windows 10 that can be updated through the Store, the new Windows Security icon is updated through the operating system and will be available for future updates to Windows 10 Feature Update.

Windows Security New Icon

Introducing PowerToys 0.15.1

The PowerToys team has announced the release of PowerToys 0.15.1. Version 0.15.1 of PowerToys includes these improvements:

  • Announces that a new version of PowerToys has been released.
  • Disclaiming the responsibility of always being an administrator.
  • Nearly 300 module tests have been added to improve stability and prevent regression.
  • Almost 100 problems have been solved.
  • .NET Framework part of the source code works faster with NGEN
  • Enhance local storage methods
  • Advanced FancyZones application compatibility
  • Create strategy 0, launch, specifications for keyboard control
  • Working to eliminate lag in costs and labels.

Continuing the Optional Updates Experiment with Drivers

They continue to look for ways to improve the Windows 10 PC upgrade process for their clients. In January this year, Microsoft announced in its 19551 version that it would conduct an experiment to provide driver updates through Windows Update. During this experiment, drivers classified as “optional” will not automatically download and install on Windows Insider PCs from version 19536 onwards. To install new additional drivers for the PC participating in this experiment (including drivers for new devices that can be connected to a PC), Insiders can go to:Settings > Update and Security > Windows Update > View additional updates and manually download these drivers. We are extending this experience so that it continues until the end of March.

(Note: this applies ONLY to the latest Fast Ring models, not 20H1).

General changes & improvements

  • Following up on our post about the new Cortana app, we wanted to let you know that in addition to timers and instant answers, which lit up last month, assistant conversations are now online. Some examples to try are “tell me a dad joke”, “tell me a bedtime story”, or “rock, paper, scissors.” We appreciate your patience while we worked on this. This is a server-side change, however we’re noting it here for awareness.
  • We’ve updated the behavior of Advanced startup (Settings > Update & Security > Recovery > Advanced startup “Restart now”) to enable some Ease of Access features to work properly. For example, previously, if the narrator feature was enabled prior to launching Advanced startup, it would stop working. Now, Advanced startup will reboot directly into the Windows Recovery Environment.
  • While the Vietnamese alphabet doesn’t include the Latin letters F, J, W, or Z, based on feedback we’re updating the grouping in the Start menu’s all app’s list to account for these letters when using this display language, so that apps like Windows PowerShell are included in the expected group.


  • We fixed an issue where input would stop working in some places if clipboard history (WIN + V) was dismissed without pasting anything.
  • We fixed an issue resulting in extra characters in the message in File Explorer when no files were listed yet in Recent Files.
  • We fixed an issue where, when setting up Windows Hello while using the Arabic display language, the box tracking progress of setup wouldn’t line up with your face.
  • We fixed an issue where preferred SafeSearch settings (Settings > Search > Permissions & History) were no longer persisting upgrade.
  • We fixed an issue which caused the microphone to sometimes not work on certain devices from Builds 19559 to 19569. If you continue seeing issues with your microphone, please file a problem report in Feedback Hub with “recreate my problem” logs.
  • We fixed an issue impacting Explorer.exe reliability when navigating in File Explorer for some Insiders.
  • We fixed an issue where using Restart Manager API to restart explorer.exe would result in all open UWP apps being closed as well.
  • We fixed an issue that could result in the DWM crashing when inking on your PC.
  • We fixed an issue that could result in Outlook crashing if you typed too many characters into the To field using the Korean IME.
  • We fixed an issue where, when using Storage Sense to clean up Windows.old, it might not be totally removed.
  • We fixed an issue that could result in Settings hanging when accessing Windows Update Settings.
  • We fixed an issue where the Family & Other Accounts page wouldn’t finish loading for some Insiders.
  • We fixed an issue resulting in the system potentially bugchecking upon toggling Bluetooth ON and OFF after waking back from sleep.
  • We fixed an issue for local account users where, until rebooting, night light would no longer work after attaching your Microsoft account.
  • We fixed an issue resulting in the machine not rebooting and kicking off the scan when you selected Microsoft Defender Offline Scan in Windows Security.
  • We fixed an issue resulting in Windows Update failing with error 0x80070002 for some users.
  • We fixed a high hitting DWM crash that some Insiders were experiencing.

Known issues

  • BattlEye and Microsoft have found incompatibility issues due to changes in the operating system between some Insider Preview builds and certain versions of BattlEye anti-cheat software. To safeguard Insiders who might have these versions installed on their PC, we have applied a compatibility hold on these devices from being offered affected builds of Windows Insider Preview.
  • We are aware Narrator and NVDA users that seek the latest release of Microsoft Edge based on Chromium may experience some difficulty when navigating and reading certain web content. Narrator, NVDA and the Edge teams are aware of these issues. Users of legacy Microsoft Edge will not be affected. NVAccess has released a NVDA 2019.3 that resolves the known issue with Edge.
  • We’re looking into reports of the update process hanging for extended periods of time when attempting to install a new build.
  • We’re investigating reports that some Insiders are unable to update to newer builds with error 0x8007042b.
  • The Documents section under Privacy has a broken icon (just a rectangle).
  • When you upgrade with certain languages, like Japanese, the “Installing Windows X%” page isn’t rendering the text correctly (only boxes are displayed).
  • The cloud recovery option for Reset this PC isn’t working on this build. Please use the local reinstall option when performing Reset this PC.
  • When trying to use Win + PrtScn to capture a screenshot, the image is not saved to the Screenshots directory. For now, you’ll need to use one of the other options for taking screenshots, such as WIN + Shift + S.
  • We’re looking into reports where, when running corruption repair (DISM), the process will stop at 84.9%.
  • Notifications sometimes have the wrong actions associated with them (for example, a reply box or various buttons).

To learn more about Windows 10 Insider Preview Build 19577, visit the official Microsoft blog.



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