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Announcing Windows Server vNext Preview Build 26433
Jun 20, 2025
StaceyCL_RM
Windows Server Datacenter: Azure Edition preview build 26404 now available in Azure
May 06, 2025
StaceyCL_RM

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Announcing Windows Server vNext Preview Build 26433
Announcing Windows Server vNext Preview Build 26433 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, Annual Channel for Container Host and Azure Edition (for VM evaluation only). Branding remains, Windows Server 2025, in this preview - when reporting issues please refer to Windows Server vNext preview. If you signed up for Server Flighting, you should receive this new build automatically. What's New Windows Admin Center (WAC) Windows Server preview customers can download and install Windows Admin Center right from the Windows Server Desktop using the in-OS app that takes care of downloading and guides you through the installation process. Note: You must be running a desktop version of Windows Server Datacenter or Standard preview to access this feature. Windows Server Flighting is here!! If you signed up for Server Flighting, you should receive this new build automatically later today. For more information, see Welcome to Windows Insider flighting on Windows Server - Microsoft Community Hub. Feedback Hub app is now available for Server Desktop users! The app should automatically update with the latest version, but if it does not, simply Check for updates in the app’s settings tab. Known Issues Download Windows Server Insider Preview (microsoft.com) Flighting: The label for this flight may incorrectly reference Windows 11. However, when selected, the package installed is the Windows Server update. Please ignore the label and proceed with installing your flight. This issue will be addressed in a future release. 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, 2025. 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. Please use the new Feedback Hub app for Windows Server if you are running a Desktop version of Server. If you are using a Core edition, or if you are unable to use the Feedback Hub app, you can 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.
StaceyCL_RM
Microsoft
Jun 20, 2025
@Windows Server
clustering
containers
Developer Platform
New Build
20Views
0likes
0Comments
In-place upgrade possibility planned for Windows Server 2025 Datacenter Azure Edition ?
There is currently no official ISO for Windows Server Datacenter: Azure Edition that supports setup.exe /auto upgrade for in-place upgrades. Azure Update Manager does not support OS version upgrades for Azure Edition through optional features. Is anyone aware of a supported workaround?
niccinator_cqi
Copper Contributor
Jun 18, 2025
General
management
24Views
0likes
1Comment
Release of Windows Server 2025 Datacenter Azure Edition
Hi all, I am happy to see there are still Insider versions of Windows Server Datacenter Azure Edition vNext Is there any ETA for a release for the next iteration after 2022? What are the feature benefits that justify Azure Edition "2025" to be ahead of WS 2025 Thank you for your help!
Karl-WE
MVP
Jun 18, 2025
General
127Views
0likes
3Comments
Microsoft HyperV 2022
Hi Team, we have a customer running with MS HyperV2012 R2 and the VMs reside on the storage LUNs. They want to install MS HyperV 2022 in new servers and migrate the VMs to New storage LUNs. (Since Old server and storage are EOSL). Any suggestion on this?
RanjithK363
Copper Contributor
Jun 12, 2025
p
3KViews
0likes
6Comments
Windows Server 2025 DC Client trust lost
Hello, anyone knows here of this big big issue with 2025 DCs? since i use them, we have the Problem that clients(win11) are loosing domain trust. Its so bad! Does it give a fix for it? Or waiting for a Patch?
Daradon
Copper Contributor
Jun 12, 2025
domain controller
Windows Server 2025
1.3KViews
1like
4Comments
I can't Turn on network discovery
Hi Why in Advanced sharing settinggs the Turn on network discovery can't save the settings in Windows Server 2019 Preview? Although as an admin I turn it on and save settings, it's again off when I open Advanced sharing settinggs. The second problem is that when I click Choose media streaming optons, I get the message The page failed to load.
Kari Kaipainen
Copper Contributor
May 29, 2025
Networking
209KViews
1like
22Comments
How to install the lastes Windows Server Insiders build?
If I only have a personal microsoft account rather than an orgainisation account how can I install Windows Server Insiders? The login page appears to only allow you to login with an organisation account? If I have gotten hold of an insiders iso, what product key do I use with it?
Solved
David Hirschfeld
Copper Contributor
May 27, 2025
General
Installation
9KViews
3likes
11Comments
Login to account on Server Insider?
Should I login to my Microsoft account on a Windows Server Insider VM, knowing that I will upgrade instead of performing clean installs and that I use the Desktop Experience? And does flighting (install new Server Insider builds via Windows Update) work without a Microsoft account?
Cigaryno
Copper Contributor
May 24, 2025
General
14Views
0likes
0Comments
Server 2025 Core ADDS DC, Network Profile Showing as "Public" and not as "DomainAuthenticated"
OS: Windows Server 20225 Standard Core (no GUI), build 26085.1 Role: ADDS, DNS ForestMode: Windows2025Forest DomainMode: Windows2025Domain Platform: Hyper-V guest When standing up a clean Windows Server 2025 using server core and configuring it as a domain controller, the network category (profile) always shows as "public." A clean load of Windows Server 2022 with server core as a domain controller has the same behavior. However, in Server 2022, the fix is to add DNS as a required service to the nlasvc (Network Location Awareness) service. Once that is done, the network category reflects "DomainAuthenticed" and persists between reboots. In Server 2025, the nlasvc service does not have the same requiredservices as Windows Server 2022, and it does not start automatically. Even after configuring the nlasvc service the same way it is in Server 2022 and adding DNS as a required service, the network category still reflects "public." The only way to get the network category to properly reflect the "DomainAuthenticated" status is to disable and reenable the network adapter after each reboot.
DarienHawkins
Copper Contributor
May 23, 2025
adds
Network Location Awareness
Server
Server Issues
Windows Server 2025
15KViews
14likes
83Comments
DNS Server order on DC NICs
DC DNS Settings Hi, I have four domain DCs. What would be the preferred IPv4 'DNS Servers' order on the NICs? DC01 & DC02 are on one 10Gb network and DC03 & DC04 are on another 10GB network. The two networks have a 1Gb link between them. This is what I'm thinking but any advice appreciated. DC01 DC02 DC03 DC04 Loopback DC02 DC01 DC03 DC04 Loopback DC03 DC04 DC01 DC02 Loopback DC04 DC03 DC01 DC02 Loopback
Mike678767
Copper Contributor
May 21, 2025
General
Networking
31Views
0likes
0Comments

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