Insider New Windows Server LTSC VNext Preview Build 25987 - Nov. 1


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Hello Windows Server Insiders!

Today we are pleased to release a new build of the next Windows Server Long-Term Servicing Channel (LTSC) Preview that contains both the Desktop Experience and Server Core installation options for Datacenter and Standard editions, and Azure Edition (for VM evaluation only). Branding has not yet been updated and remains as Windows Server 2022 in this preview - when reporting issues please refer to "VNext" rather than Windows Server 2022 which is currently in market.

What's New​

SMB over QUIC now supports additional access control options for clients. This improves the existing SMB over QUIC feature, which introduced an alternative to the TCP network transport, providing secure, reliable connectivity to edge file servers over untrusted networks like the Internet.

With this new option, administrators can restrict which clients can access SMB over QUIC servers. This option gives organizations additional SMB over QUIC connection protections but does not change the Windows authentication used to make the SMB connection or the end user experience.

This new feature requires both the Windows 11 Insider Preview Build 25977 as well as a Windows Server Insider Preview Build 25977 (or higher) running in a VM.

For more information on configuring SMB over QUIC client access control, review SMB over QUIC client access control now supported in Windows Insider.

The following new features are specific to Windows Server with Desktop Experience only. Some of these will require running the OS on physical systems AND having the right drivers on hand.
  • Additions to Settings>Accounts: Email & Accounts is now consistent with Windows 11. Please note, that domain join will still be necessary for most scenarios.
  • Increased coverage for Bluetooth devices. Many of you want to use BT to connect mice, keyboards, and audio devices at the Edge. Please try out your favorite keyboard, mouse, headphones, or other BT peripheral!
    • Wi-Fi present by default. Many of you want to connect servers to Wi-Fi networks at the Edge. While Wireless LAN service has been present in Windows Server, it was disabled by default. Wi-Fi support is now currently enabled by default for Edge scenarios. You will need the appropriate hardware and drivers handy. Please verify that your wireless devices work properly. When hardware and the correct drivers are present, see the corresponding Settings and Taskbar experiences. Let us know what you think!
  • First login privacy settings: this is not the final version, but you will notice a Windows 11 like first login “OOBE” experience, albeit limited to user privacy settings.

Known Issues​

If you are validating upgrades from Windows Server 2019 or 2022, we do not recommend that you use this build as intermittent upgrade failures have been identified for this build.

This build has an issue where archiving eventlogs with "wevetutil al" command causes the Windows Event Log service to crash, and the archive operation to fail. The service must be restarted by executing "Start-Service EventLog" from an administrative command line prompt.

If you have Secure Launch/DRTM code path enabled, we do not recommend that you install this build.

Available Downloads​

Downloads to certain countries may not be available. See Microsoft suspends new sales in Russia - Microsoft On the Issues
  • Windows Server Long-Term Servicing Channel Preview in ISO format in 18 languages, and in VHDX format in English only.
  • Windows Server Datacenter Azure Edition Preview in ISO and VHDX format, English only.
  • Microsoft Server Languages and Optional Features Preview
Keys: Keys are valid for preview builds only
  • Server Standard: MFY9F-XBN2F-TYFMP-CCV49-RMYVH
  • Datacenter: 2KNJJ-33Y9H-2GXGX-KMQWH-G6H67
  • Azure Edition does not accept a key
Symbols: available on the public symbol server – see Using the Microsoft Symbol Server.

Expiration: This Windows Server Preview will expire September 15, 2024.

How to Download​

Registered Insiders may navigate directly to the Windows Server Insider Preview download page. If you have not yet registered as an Insider, see GETTING STARTED WITH SERVER on the Windows Insiders for Business portal.

We value your feedback!​

The most important part of the release cycle is to hear what's working and what needs to be improved, so your feedback is extremely valued. For Windows Server, use your registered Windows 10 or Windows 11 Insider device and use the Feedback Hub application. In the app, choose the Windows Server category and then the appropriate subcategory for your feedback. In the title of the Feedback, please indicate the build number you are providing feedback on as shown below to ensure that your issue is attributed to the right version:

[Server #####] Title of my feedback

See Give Feedback on Windows Server via Feedback Hub for specifics. The Windows Server Insiders space on the Microsoft Tech Communities supports preview builds of the next version of Windows Server. Use the forum to collaborate, share and learn from experts. For versions that have been released to general availability in market, try the Windows Server for IT Pro forum or contact Support for Business.

Diagnostic and Usage Information​

Microsoft collects this information over the internet to help keep Windows secure and up to date, troubleshoot problems, and make product improvements. Microsoft server operating systems can be configured to turn diagnostic data off, send Required diagnostic data, or send Optional diagnostic data. During previews, Microsoft asks that you change the default setting to Optional to provide the best automatic feedback and help us improve the final product.

Administrators can change the level of information collection through Settings. For details, see http://aka.ms/winserverdata. Also see the Microsoft Privacy Statement.

Terms of Use​

This is pre-release software - it is provided for use "as-is" and is not supported in production environments. Users are responsible for installing any updates that may be made available from Windows Update. All pre-release software made available to you via the Windows Server Insider program is governed by the Insider Terms of Use.

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