Microsoft fixes some issues with last week's Windows 10 and 11 Release Preview updates

Microsoft has rolled out an update for last week's Windows 10 Release Preview build 19045.6156, under KB5062649 for Insiders flighting the channel. The new build, Build 19045.6159 (KB5062649), does not contain any new features, it addresses some issues with the update itself. As a reminder, the biggest highlight was a fix related to the recently released ESU wizard that allows users to enroll for the Extended Security Updates (ESU).

Asided from that, the build added improvements related to Secure Boot. Microsoft is also promising "stability fixes" after the latest July 2025 Patch Tuesday.

The full changelog is given below:

• Update resolves an issue impacting the Windows 10 Extended Security Updates (ESU) enrollment wizard. Some users experienced a problem where clicking “Enroll now” caused the wizard window to open, begin loading, and then close unexpectedly. This occurred due to incomplete app registration, which prevented the wizard from loading correctly. This update addresses that issue to ensure a smoother enrollment experience.

• [Mobile Operator Profiles] Updated: Country and Operator Settings Asset (COSA) profiles.
• [Secure Boot] New! Adds the ability to deploy SKUSiPolicy VBS Anti-rollback protections through the Secure Boot AvailableUpdates registry key.
• [Stability issue] Fixed: This update addresses an issue observed in rare cases after installing the May 2025 security update and subsequent updates causing devices to experience stability issues. Some devices became unresponsive and stopped responding in specific scenarios.

You can view the announcement blog post here on Microsoft's official website.

Next up, there's an update for Windows 11 insiders in the Release Preview Channel as well. Build 22631.5696 under KB5062663 which also flighted last week on July 10 has received an update to Build 22631.5699 (KB5062663) that also addresses some issues with the update itself. Everything in today's update was announced last week.

As a reminder, here is what is included in Windows 11 build 22631.5699 (KB5062663):

• [Country and Operator Settings Asset (COSA)] Fixed: This update brings profiles up to date for certain mobile operators.
• [File systems]
  • Fixed: This update addresses an issue in the Resilient File System (ReFS) where using backup applications on large files could occasionally result in system memory becoming fully exhausted.
  • Fixed: An issue where searching for PDF files in a shared folder could return incorrect error messages, such as “No More Files” or “STATUS_NO_MORE_FILES.” These errors disrupted output to the virtual PDF printer and interfered with backup processes.
• [Networking] Fixed: An issue where peripheral devices could take longer to work after resuming from hibernation on some devices with active cellular connections.
• [Printer] Improved: Printer names now appear more clearly when using IPP Directed Discovery, making it easier to identify printers during setup.
• [Stability issue] Fixed: This update addresses an issue observed in rare cases after installing the May 2025 security update and subsequent updates, causing devices to experience stability issues. Some devices became unresponsive and stopped responding in specific scenarios.

As a reminder, Microsoft recently announced Windows 11 version 25H2, which is now in testing in the Dev Channel. The Beta Channel is still version 24H2, and the Release Preview is on both versions 23H2 and 24H2.

You can find the complete changelog in a post on the official Windows Insider Blog.

Source

Hope you enjoyed this news post.

Posted Wednesday 16 July 2025 at 1:48 pm AEST (my time).

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