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Build 19045.6033

Build 19045.6033: Windows Insider Release Preview Channel, June 2025. Start menu fixes and a PC-to-PC migration preview

In short

Build 19045.6033 gives Windows 10 Release Preview Insiders a preview of PC-to-PC migration, changes to browser defaults in the EEA, and fixes for issues including Start menu and scanning problems.

Does it affect you? Applies to: Insiders in the Release Preview Channel who are using Windows 10, version 22H2.

Build
19045.6033

Microsoft publishes separate notes for this KB for Windows 10.

This is a test build for people in the Windows Insider Program. Features in it can change, be removed, or never reach regular Windows releases.

What changes

Fixes 9 changes

App Platforms and Frameworks

For: Windows 10 version 22H2 Insiders

  • Remote COM activations work again.1
    Fixes remote Component Object Model (COM) activation failures with error 0x8001011.

Authentication Platform

For: Windows 10 version 22H2 Insiders

  • Device registration works correctly with the Entra ID Windows Account Manager plugin.2
    Fixes an issue affecting device registration in the Entra ID Windows Account Manager (WAM) plugin.

Input and Composition

For: Windows 10 version 22H2 Insiders

  • Unused language packs and optional Windows packages are fully removed, reducing unnecessary storage use and Windows Update installation time.3
    Fixes complete removal of unused language packs and Feature on Demand (FOD) packages.

Print and Peripherals

  • Scanning works again for some USB-connected multifunction printers with dual protocol interfaces.4
    Fixes an issue that could prevent use of the operating system's built-in scanning functionality.

Start Menu

2 items

For: Windows 10 version 22H2 Insiders

  • Start menu jump lists no longer disappear.5
  • The Start menu starts after an update is installed.6

Settings

For: Windows 10 version 22H2 Insiders

  • Settings > System > About shows version 22H2 instead of incorrectly showing version 2009.7

Servicing

  • Some kiosk devices no longer risk a blue screen after support administrators lock and unlock them.8
    The issue affects kiosk devices using the ForceAutoLogon configuration and Shift Override.

File Server

For: Windows 10 version 22H2 Insiders using SMB shares

  • The system no longer hangs in the described case involving resources on SMB shares.9
    Fixes a hang when acknowledging an Oplock break on resources located on SMB shares.

Improvements 5 changes

Mobile Operator Profiles

For: Windows 10 version 22H2 Insiders

  • Country and operator settings profiles are updated.10
    Updates Country and Operator Settings Asset (COSA) profiles.

App Platforms and Frameworks

For: Windows 10 version 22H2 Insiders

  • The curl tool included with Windows is updated.11
    Upgrades curl to version 8.13.0.

App defaults

Gradual rollout 3 items

For: Insiders in the EEA

  • When you set a new default browser in the EEA, Windows also sets additional file and link types that the browser registers for.12
    Available via Settings > Apps > Default apps > Set default.
  • The new default browser is pinned to the taskbar and Start menu unless you clear the pinning checkboxes.13
  • Browsers that register for PDF files get a separate one-click option to become the default for .pdf files.14

New feature 1 change

PC Migration

Gradual rollout

For: Insiders receiving the phased rollout

  • The Windows Backup app begins showing landing and pairing pages for a PC-to-PC migration preview. Transferring files and settings during setup of the new PC is planned for the full experience; setup support is coming in a future update.15

Technical details

Data sheet · Security · Downloads · Components Click to collapse or expand

Data sheet

Released
2025-06-12
Type
Windows Insider build
VersionBuildChannel
— 19045.6033 Release Preview Channel

Security

No vulnerabilities are listed for this update.

Sources

Updated
Cited passages from Microsoft's official notes (15)
  1. 1. Fixed: An issue affecting Component Object Model (COM) functionality on Windows platforms, where remote COM activations were failing with error 0x8001011. blogs.windows.com
  2. 2. Fixed: An issue affecting the device registration in Entra ID Windows Account Manager (WAM) plugin. blogs.windows.com
  3. 3. Fixed: An issue affecting the complete removal of unused language packs and Feature on Demand (FOD) packages. This led to unnecessary storage use and increase in Windows Update installation time. blogs.windows.com
  4. 4. Fixed: An issue affecting USB-connected Multi-Function printers with dual protocol interfaces, where scanning may fail and prevent use of the OS’s built-in scanning functionality. blogs.windows.com
  5. 5. Fixed: An issue causing jump lists to disappear from the Start Menu. blogs.windows.com
  6. 6. Fixed: An issue where the Start Menu was not starting after installing an update. blogs.windows.com
  7. 7. Fixed: Settings > System > About unexpectedly shows version 2009 instead of version 22H2. blogs.windows.com
  8. 8. Fixed: An issue where Kiosk devices using the ForceAutoLogon configuration and Shift Override might stop responding with a blue screen after being locked and unlocked by support administrators. blogs.windows.com
  9. 9. Fixed: An issue where the system may hang when acknowledging an Oplock break on resources located on SMB shares. blogs.windows.com
  10. 10. Updated: Country and Operator Settings Asset (COSA) profiles. blogs.windows.com
  11. 11. Upgraded the version of the curl tool included in Windows to v8.13.0. blogs.windows.com
  12. 12. Additional file and link types will be set for the new default browser, if it registers them. blogs.windows.com
  13. 13. The new default browser will be pinned to the Taskbar and Start menu unless you choose not to pin it by clearing the checkboxes. blogs.windows.com
  14. 14. There is now a separate one-click button for browsers to change your .pdf default, if the browser registers for the .pdf file type. blogs.windows.com
  15. 15. We’re beginning the rollout of a new PC-to-PC migration experience in Windows. You’ll start to see the landing and the pairing page in the Windows Backup app, giving you a first look at what’s coming. blogs.windows.com
Checked automatically: 8 of 8 checks passed, 15 quoted passages
  • Quotes found in the official pages: passed
  • Numbers found in the sources: passed
  • Vulnerabilities from the dossier only: passed
  • Links to allowed domains only: passed
  • Every official change covered: passed
  • Readable plain text: passed
  • Changes confirmed by the file list: passed
  • Sources agree: passed

A second AI read the text against the sources: correctness 5/5, clarity 4/5, completeness 5/5. How we work

Published by The Update Bureau. Written with AI from Microsoft's own documents, checked by rules and a second AI. How we work · Report a mistake