Announcing Windows Server vNext Preview Build 26445
Announcing Windows Server vNext Preview Build 26445 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 [NEW] Rack Level Nested Mirror (RLNM) for S2D Campus Cluster Rack Level Nested Mirror (RLNM) for S2D Campus Cluster enables customers to meet NIS2 two data room requirements for their factories by providing fast and resilient storage using Storage Spaces Direct (S2D). For S2D Campus Cluster, we recommend using all-flash storage (SSD or NVMe drives), all capacity (no cache drives), and RDMA NICs (iWARP, RoCE, or InfiniBand). Note: Rack fault domains must be created on the cluster in order to use this feature – a new cluster must be created: #Create a test cluster but do not create storage: New-Cluster -Name TestCluster -Node Node1, Node2, Node3, Node4 -NoStorage #Define the fault domains for the cluster – two nodes are in “Room1” and two nodes are in “Room2”: Set-ClusterFaultDomain -XML @”<Topology><Site Name=”Redmond”><Rack Name=”Room1”><Node Name=”Node1”/><Node Name=”Node2”/></Rack><Rack Name=”Room2”><Node Name=”Node3”/> <Node Name=”Node4”/></Rack></Site></Topology>”@ #Add Storage Spaces Direct (S2D) Storage to the cluster – note that Enable-ClusterS2D cmdlet can also be used: Enable-ClusterStorageSpacesDirect #Check that the Storage Pool’s FaultDomainAwareness property is set to StorageRack: Get-storagepool -FriendlyName <S2DStoragePool> | fl #Create a four-copy volume on the storage pool: New-Volume -FriendlyName “FourCopyVolume” -StoragePoolFriendlyName S2D* -FileSystem CSVFS_ReFS –Size 500GB –ResiliencySetttingName Mirror -PhysicalDiskRedundancy 3 -NumberOfDataCopies 4 –NumberOfColumns 3 #Create a four-copy volume on the storage pool, thinly provisioned: New-Volume -FriendlyName “FourCopyVolume” -StoragePoolFriendlyName S2D* -FileSystem CSVFS_ReFS –Size 500GB –ResiliencySetttingName Mirror -PhysicalDiskRedundancy 3 –ProvisioningType Thin -NumberOfDataCopies 4 –NumberOfColumns 3 Windows Server Flighting is here!! If you signed up for Server Flighting, you should receive this new build automatically 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.
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?
ISSUE - sconfig interface index different / cannot edit static IP
Dear Microsoft Team, I would like to request looking into these issues: 1. Get-Netadapter ifIndex is different in sconfig. Sconfig ifindex do not match an are apparently wrong. this is reproducible. Currently the only way to identify is the InferfaceDescription in sconfig, because ifalias / ifname are missing. I made a FR for these aswell as for VLAN config in previous threads. No reponse on these yet 2. if an adapter has DHCP disabled and a static IP address, sconfig can no longer be used to change the IP adress. There is no option to remove IPAdress and Gateway either. error :-Failed to release DHCP lease, Result Code 83 Please to look into these and my FRs for sconfig. I understand that the point of Artem is that sconfig is not a management rather first settings tool, Yet these basics have to work anyway as inexperienced people would be lost. It is not easy to remediate such state with PowerShell. Especially on Azure Stack HCI and Windows Server Core.[server 25314] External SET Team to Internal after Reboot.
I have created SET Teaming on Windows Server 25314 (actually from a previous build) using External and 3 Intel i350-T4 ports, configured for Hyper-V and external access. New-VMSwitch -Name SETSwitch -NetAdapterName "i350t4_1","i350t4_2","i350t4_3" -AllowManagementOS $true -EnableEmbeddedTeaming $true -EnableIov $true Set-VMSwitchTeam -Name SETSwitch -LoadBalancingAlgorithm Dynamic In that case, the Hyper-V VM and OS can be accessed normally, but when I restart Windows Server, all Adapters disappear from SET Teaming and are changed to the Internal setting, and network access is lost. The above logs were obtained at WPR with Profile in Network. Since the file is large, I will post a link to OneDrive. setTeamingTrouble.etl https://1drv.ms/u/s!AoGvAA_XXMTH-dJ2gkOa6E5hP4QhLg?e=7hPgLQ In addition, if the EnableIov option is set to $false, a BSOD (KMODE_EXCEPTION_HANDLED) will occur after the Switch is created. VMSWITCH.SYS 0x0000007e (0xffffffffc0000005, 0xfffff80643a95c61, 0xffffb28989f2a6d8, 0xffffb28989f29ef0) Addition 2: LBFO Teaming is working properly. I tried to send it through the Feedback Hub and could not get it to work, so I have included it here. Addition 3: Server 25324 LBFO Teaming with New-VMSwitch failed.
Proactive private share #microsoft
Many comapanies is part of my job last two year. I desade to implement and create new public communty group at microsoft, with public share. Like universal patch insade giant org and partner companes ,microsoft deside lead postiton. Proacticve and future plan is constructed to grow on world network with client and our partnersWindows Server 2022 or 2025 Data Centre edition- concurrent editing of Microsoft office documents
Does Windows Server 2022 or 2025 Data Centre edition provide real time collaboration or concurrent editing (through workspaces etc) by multiple users on Microsoft office documents hosted on it locally. So for the sole purpose of having concurrent editing feature of office documents, can Windows Server 2022 or 2025 Data Centre edition become an alternative to using Sharepoint server hosted locally or on premise.
Problems to join Debian/Ubuntu machines to a domain
Is not posible to join Debian/Ubuntu machines to a domain based on Windows Server 2025 (using realm at least) this is the error: ! Couldn't set password for computer account: XXXX$: Message stream modified adcli: joining domain xxxx.local failed: Couldn't set password for computer account: XXXX$: Message stream modified ! Failed to join the domain realm: Couldn't join realm: Failed to join the domain Domain is discoverable vía realm: root@lnms01:/home/administrator# realm discover xxxx.local xxxx.local type: kerberos realm-name: XXXX.LOCAL domain-name: xxxx.local configured: no server-software: active-directory client-software: sssd required-package: sssd-tools required-package: sssd required-package: libnss-sss Tested on WS2025 build 26227 and Linux 6.1.0-21-amd64 x86_64, Linux 6.6.31+rpt-rpi-v8 aarch64 and Linux 6.8.0-31-generic x86_64. Those 3 versions of Linux joined to another doman based con Windows Server 2022 without issues.
