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Windows Insiders - State of vbscript deprecation June 2026
Third-Party AMD: Chipset drivers so far is one of the major non MSFT related blockers. Suggestions: Microsoft should initiate talks with AMD and other ISV and OEMs fixing their dependencies, also offering other solutions, see below. Currently AMD Chipset drivers silently using vbscript calls checking for OS and HW platform compatibility, fails when vbscript is removed. Microsoft Windows Server and Client OS / slmgr.vbs / printer management vbs scripts: not seeing much buzz here. Office 2024 LTSC / slmgr.vbs / ospp.vbs: there is a new PS script for activation but rather has only checking features cannot activate product Microsoft 365 / ospp.vbs: despite being subscription based will also trouble with activation once vbscript is removed Sconfig no changes so far, relies on external changes. WinRM e.g. winrm qc IIS IIS extension WSUS related deployment scripts Suggestions: Recommending all these scripts being converted to PowerShell using Claude or Copilot from vbs to PowerShell. providing a serviceable PS module for printing and product activation, which helps enterprises to automate their activations and printers, even though Microsoft is going to remove vbscript. Module should also improve tasks, because slmgr had a lot of drawbacks, e.g. finding and removing (stale) keys is tedious. combining slui.exe and slmgr.vbs into aforementioned improvements in functionality and syntax. consider support for PowerShell 7 in WinRE and Offline Setup phase. I am not against the vbscript removal at all, just like to point out one should not wait for the last month before providing enterprise/grade solutions at scale. That|s my lessons learned from Secure Boot CA2023 exchange initiative, where Microsoft guidance and PS based tools have been released late in regards to the timeline of change. SMB customers, Enterprises, Microsoft Products, including SCCM, Intune, WDS, ADK - including Windows Imaging Tools and Windows setup.exe are required to adopt these changes way before deprecation. There is quite some communication and learning curve required. Many thanks for your consideration! Directory: C:\Windows\System32\Printing_Admin_Scripts\en-US Mode LastWriteTime Length Name ---- ------------- ------ ---- -a--- 4/16/2026 10:43 AM 98756 prncnfg.vbs -a--- 4/16/2026 10:43 AM 66172 prndrvr.vbs -a--- 4/16/2026 10:43 AM 62698 prnjobs.vbs -a--- 4/16/2026 10:43 AM 95908 prnmngr.vbs -a--- 4/16/2026 10:43 AM 71616 prnport.vbs -a--- 4/16/2026 10:43 AM 44278 prnqctl.vbs -a--- 4/16/2026 10:43 AM 22612 pubprn.vbs Directory: C:\Windows\System32 Mode LastWriteTime Length Name ---- ------------- ------ ---- -a--- 4/16/2026 9:14 AM 4119 CallUxxProvider.vbs -a--- 4/16/2026 9:14 AM 145712 slmgr.vbs -a--- 4/16/2026 9:14 AM 1720 SyncAppvPublishingServer.vbs -a--- 4/16/2026 9:14 AM 204072 winrm.vbs Directory: C:\Windows\SysWOW64\Printing_Admin_Scripts\en-US Mode LastWriteTime Length Name ---- ------------- ------ ---- -a--- 4/16/2026 10:43 AM 98756 prncnfg.vbs -a--- 4/16/2026 10:43 AM 66172 prndrvr.vbs -a--- 4/16/2026 10:43 AM 62698 prnjobs.vbs -a--- 4/16/2026 10:43 AM 95908 prnmngr.vbs -a--- 4/16/2026 10:43 AM 71616 prnport.vbs -a--- 4/16/2026 10:43 AM 44278 prnqctl.vbs -a--- 4/16/2026 10:43 AM 22612 pubprn.vbs Directory: C:\Windows\SysWOW64 Mode LastWriteTime Length Name ---- ------------- ------ ---- -a--- 4/16/2026 9:14 AM 145712 slmgr.vbs -a--- 4/16/2026 9:14 AM 204072 winrm.vbs Directory: C:\Windows\WinSxS\amd64_microsoft-windows-a..nagement-appvclient_31bf3856ad364e35_10.0.29574.1000_none_0895f7c27f109b8a Mode LastWriteTime Length Name ---- ------------- ------ ---- -a--- 4/16/2026 9:14 AM 1720 SyncAppvPublishingServer.vbs Directory: C:\Windows\WinSxS\amd64_microsoft-windows-iis-legacyscripts_31bf3856ad364e35_10.0.29574.1000_none_ba69ed912e209e30 Mode LastWriteTime Length Name ---- ------------- ------ ---- -a--- 4/16/2026 9:14 AM 98133 adsutil.vbs -a--- 4/16/2026 9:14 AM 41401 IIsExt.vbs Directory: C:\Windows\WinSxS\amd64_microsoft-windows-p..inscripts.resources_31bf3856ad364e35_10.0.29574.1000_en-us_ 4ad0e09e0339f1ef Mode LastWriteTime Length Name ---- ------------- ------ ---- -a--- 4/16/2026 10:43 AM 98756 prncnfg.vbs -a--- 4/16/2026 10:43 AM 66172 prndrvr.vbs -a--- 4/16/2026 10:43 AM 62698 prnjobs.vbs -a--- 4/16/2026 10:43 AM 95908 prnmngr.vbs -a--- 4/16/2026 10:43 AM 71616 prnport.vbs -a--- 4/16/2026 10:43 AM 44278 prnqctl.vbs -a--- 4/16/2026 10:43 AM 22612 pubprn.vbs Directory: C:\Windows\WinSxS\amd64_microsoft-windows-s..r-core-mgmtprovider_31bf3856ad364e35_10.0.29574.1000_none_62cec50667f8da2a Mode LastWriteTime Length Name ---- ------------- ------ ---- -a--- 4/16/2026 9:14 AM 4119 CallUxxProvider.vbs Directory: C:\Windows\WinSxS\amd64_microsoft-windows-security-spp-tools_31bf3856ad364e35_10.0.29574.1000_none_81bcc6c67609fdb9 Mode LastWriteTime Length Name ---- ------------- ------ ---- -a--- 4/16/2026 9:14 AM 145712 slmgr.vbs Directory: C:\Windows\WinSxS\amd64_microsoft-windows-w..for-management-core_31bf3856ad364e35_10.0.29574.1000_none_0688f60763f16bc8 Mode LastWriteTime Length Name ---- ------------- ------ ---- -a--- 4/16/2026 9:14 AM 204072 winrm.vbs Directory: C:\Windows\WinSxS\amd64_updateservices-services_31bf3856ad364e35_10.0.29574.1000_none_bae89f3176313538 Mode LastWriteTime Length Name ---- ------------- ------ ---- -a--- 4/16/2026 9:14 AM 8332 DynamicCompression.vbs -a--- 4/16/2026 9:14 AM 4289 SetAppPool.vbs -a--- 4/16/2026 9:14 AM 5813 SetMimeMap.vbs Directory: C:\Windows\WinSxS\wow64_microsoft-windows-iis-legacyscripts_31bf3856ad364e35_10.0.29574.1000_none_c4be97e36281602b Mode LastWriteTime Length Name ---- ------------- ------ ---- -a--- 4/16/2026 9:14 AM 41401 IIsExt.vbs Directory: C:\Windows\WinSxS\wow64_microsoft-windows-p..inscripts.resources_31bf3856ad364e35_10.0.29574.1000_en-us_ 55258af0379ab3ea Mode LastWriteTime Length Name ---- ------------- ------ ---- -a--- 4/16/2026 10:43 AM 98756 prncnfg.vbs -a--- 4/16/2026 10:43 AM 66172 prndrvr.vbs -a--- 4/16/2026 10:43 AM 62698 prnjobs.vbs -a--- 4/16/2026 10:43 AM 95908 prnmngr.vbs -a--- 4/16/2026 10:43 AM 71616 prnport.vbs -a--- 4/16/2026 10:43 AM 44278 prnqctl.vbs -a--- 4/16/2026 10:43 AM 22612 pubprn.vbs Directory: C:\Windows\WinSxS\wow64_microsoft-windows-security-spp-tools_31bf3856ad364e35_10.0.29574.1000_none_8c117118aa6abfb4 Mode LastWriteTime Length Name ---- ------------- ------ ---- -a--- 4/16/2026 9:14 AM 145712 slmgr.vbs Directory: C:\Windows\WinSxS\wow64_microsoft-windows-w..for-management-core_31bf3856ad364e35_10.0.29574.1000_none_10dda05998522dc3 Mode LastWriteTime Length Name ---- ------------- ------ ---- -a--- 4/16/2026 9:14 AM 204072 winrm.vbs related announcements: https://techcommunity.microsoft.com/blog/Windows-ITPro-blog/vbscript-deprecation-timelines-and-next-steps/414830154Views0likes0CommentsWindows Server vNext cannot be activated
Error Code 0xC004F012 when trying to activate WS vNext Datacenter with Key 2KNJJ-33Y9H-2GXGX-KMQWH-G6H67. vbscript is removed, implying the future removal of this component from the OS. It appear that Windows Activation still relying on vbscript. Is this something that is on the roadmap? Would wish for native PowerShell support / module instead of vbscript.14Views0likes0CommentsWindows Server Datacenter: Azure Edition preview build 29595 now available in Azure
Hello Windows Server Insiders! We welcome you to try Windows Server vNext Datacenter: Azure Edition preview build 29595 in both Desktop experience and Core version on the Microsoft Server Operating Systems Preview offer in Azure. Azure Edition is optimized for operation in the Azure environment. For additional information, see Preview: Windows Server VNext Datacenter (Azure Edition) for Azure Automanage on Microsoft Docs. For more information about this build, see Announcing Windows Server vNext Preview Build 29595 | Microsoft Community Hub.54Views1like0CommentsAnnouncing Windows Server vNext Preview Build 29595
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 remains Windows Server 2025 in this preview - when reporting issues please refer to Windows Server vNext preview. Build 29531 established a new Server preview baseline build. Please perform a clean install of Build 29531 (or later) using the installation media linked below. Please note: Upgrades from Windows Server vNext preview builds older than 29531 are not supported. We encourage all Windows Server vNext preview users to perform a clean install using 29531 or later to successfully upgrade to future Windows Server vNext preview builds. While upgrades from earlier Windows Server previews (Build 26525 and older) are not technically blocked by setup.exe, a number of known issues have been identified related to upgrades necessitating the establishment of a new baseline build for our Server vNext Preview Program. The new baseline build (29531) will not be Flighted due to upgrade issues. Flighting support resumed with preview build 29550 or later. What's New Quick Machine Recovery available in Windows Server vNext Insider Previews. Quick machine recovery (QMR) is now available for Server vNext Insiders to test. This feature enables the recovery of Windows Server devices when they encounter boot critical errors that prevent them from booting. QMR can automatically search for cloud‑based remediations to recover from widespread boot failures significantly reducing the burden on IT administrators when multiple devices are impacted. This supports the goals of the Windows Resiliency Initiative by enabling applicable fixes to be delivered through trusted Windows Update to restore affected devices, helping reduce downtime and minimize manual recovery efforts across enterprise environments. This feature is currently enabled in the latest Server vNext Insider builds for customers to experience test mode. A Group Policy option to enable or disable the feature will be introduced in upcoming builds to provide additional administrative control. To simulate the quick machine recovery experience, use the following commands from an elevated command prompt: 1. Enable test mode: reagentc.exe /SetRecoveryTestmode 2. Configure Windows to boot to Windows Recovery Environment on the next boot: reagentc.exe /BootToRe 3. Reboot your device. The system goes through autoremediation of a simulated crash safely and reboots back to Windows Server. For more information, please review Quick machine recovery (QMR) and Windows Resiliency Initiative. When providing feedback using Feedback hub, please select QMR from the Recovery and Uninstall category in the app. NVMe-over-Fabrics (NVMe-oF) extends the NVMe protocol—originally designed for local PCIe-attached SSDs—across a network fabric. Instead of using legacy SCSI-based protocols such as iSCSI or Fibre Channel, NVMe-oF allows a host to communicate directly with remote NVMe controllers using the same NVMe command set used for local devices. In this Insider build, Windows Server supports: NVMe-oF over TCP (NVMe/TCP), allowing NVMe-oF to run over standard Ethernet networks without specialized hardware. NVMe-oF over RDMA (NVMe/RDMA), enabling low-latency, high-throughput NVMe access over RDMA-capable networks (for example, RoCE or iWARP) using supported RDMA NICs. For more information, please visit: Introducing the Windows NVMe-oF Initiator Preview in Windows Server Insiders Builds | Microsoft Community Hub ReFS Boot is enabled for Windows Server vNext preview builds. Known Limitations ReFS Boot systems create a minimum 2GB WinRE partition. When WinRE cannot be updated due to space constraints, the system may disable WinRE. Disabling WinRE does not remove the partition. If the WinRE partition is deleted and the boot volume is extended over it, this operation is unrecoverable without a clean install. For more information, please visit: Resilient File System (ReFS) overview | Microsoft Learn Feedback Hub app is 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 Server Core Upgrades and AppCompat FOD: Enabling AppCompat FOD after reinstall may fail due to legacy 3rd-party license compatibility issues on Server Core devices. Server Core users may be unable to install the latest AppCompat FOD after upgrading to build 29574. This appears to be limited to Server Core installations with 3rd-party application licenses that fail compatibility checks after upgrade. This will be addressed in a future build. Upgrading from older builds of Windows Server vNext previews (26525 or older) are not supported. Please perform a clean install of build 29531 or later. Users may experience failures when attempting to upgrade from earlier previews (build 26525 and older). VMs may fail to upgrade or start after upgrade from older preview builds impacting live migration and failover cluster scenarios. 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 vNext 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, 2026. 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.374Views4likes0CommentsWindows Server Datacenter: Azure Edition preview build 29585 now available in Azure
Hello Windows Server Insiders! We welcome you to try Windows Server vNext Datacenter: Azure Edition preview build 29585 in both Desktop experience and Core version on the Microsoft Server Operating Systems Preview offer in Azure. Azure Edition is optimized for operation in the Azure environment. For additional information, see Preview: Windows Server VNext Datacenter (Azure Edition) for Azure Automanage on Microsoft Docs. For more information about this build, see Announcing Windows Server vNext Preview Build 29585 | Microsoft Community Hub.73Views1like0CommentsCXL Memory Expansion on WinServer 2025
I'm looking to find out if on window server 2025 is CXL Type 3 in memory expansion mode is validated "GA" and if so which cxl devices. I'm having issues finding this information. Anyone know and able to share?isheafferMay 15, 2026Copper Contributor104Views0likes2CommentsAnnouncing Windows Server vNext Preview Build 29585
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 remains Windows Server 2025 in this preview - when reporting issues please refer to Windows Server vNext preview. Build 29531 established a new Server preview baseline build. Please perform a clean install of Build 29531 (or later) using the installation media linked below. Please note: Upgrades from Windows Server vNext preview builds older than 29531 are not supported. We encourage all Windows Server vNext preview users to perform a clean install using 29531 or later to successfully upgrade to future Windows Server vNext preview builds. While upgrades from earlier Windows Server previews (Build 26525 and older) are not technically blocked by setup.exe, a number of known issues have been identified related to upgrades necessitating the establishment of a new baseline build for our Server vNext Preview Program. The new baseline build (29531) will not be Flighted due to upgrade issues. Flighting support resumed with preview build 29550 or later. Please join us this week for Windows Server Summit 2026 Windows Server Summit 2026 is happening this week (May 11 - May 13). Please join us for this online event to learn about the latest updates in Windows Server 2025 and what's coming in vNext. For more information and to register, please visit Windows Server Summit - May 11-13, 2026 - Microsoft Event page. What's New Quick Machine Recovery available in Windows Server vNext Insider Previews. Quick machine recovery (QMR) is now available for Server vNext Insiders to test. This feature enables the recovery of Windows Server devices when they encounter boot critical errors that prevent them from booting. QMR can automatically search for cloud‑based remediations to recover from widespread boot failures significantly reducing the burden on IT administrators when multiple devices are impacted. This supports the goals of the Windows Resiliency Initiative by enabling applicable fixes to be delivered through trusted Windows Update to restore affected devices, helping reduce downtime and minimize manual recovery efforts across enterprise environments. This feature is currently enabled in the latest Server vNext Insider builds for customers to experience test mode. A Group Policy option to enable or disable the feature will be introduced in upcoming builds to provide additional administrative control. To simulate the quick machine recovery experience, use the following commands from an elevated command prompt: 1. Enable test mode: reagentc.exe /SetRecoveryTestmode 2. Configure Windows to boot to Windows Recovery Environment on the next boot: reagentc.exe /BootToRe 3. Reboot your device. The system goes through autoremediation of a simulated crash safely and reboots back to Windows Server. For more information, please review Quick machine recovery (QMR) and Windows Resiliency Initiative. When providing feedback using Feedback hub, please select QMR from the Recovery and Uninstall category in the app. NVMe-over-Fabrics (NVMe-oF) extends the NVMe protocol—originally designed for local PCIe-attached SSDs—across a network fabric. Instead of using legacy SCSI-based protocols such as iSCSI or Fibre Channel, NVMe-oF allows a host to communicate directly with remote NVMe controllers using the same NVMe command set used for local devices. In this Insider build, Windows Server supports: NVMe-oF over TCP (NVMe/TCP), allowing NVMe-oF to run over standard Ethernet networks without specialized hardware. NVMe-oF over RDMA (NVMe/RDMA), enabling low-latency, high-throughput NVMe access over RDMA-capable networks (for example, RoCE or iWARP) using supported RDMA NICs. For more information, please visit: Introducing the Windows NVMe-oF Initiator Preview in Windows Server Insiders Builds | Microsoft Community Hub ReFS Boot is enabled for Windows Server vNext preview builds. Known Limitations ReFS Boot systems create a minimum 2GB WinRE partition. When WinRE cannot be updated due to space constraints, the system may disable WinRE. Disabling WinRE does not remove the partition. If the WinRE partition is deleted and the boot volume is extended over it, this operation is unrecoverable without a clean install. For more information, please visit: Resilient File System (ReFS) overview | Microsoft Learn Feedback Hub app is 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 Server Core Upgrades and AppCompat FOD: Enabling AppCompat FOD after reinstall may fail due to legacy 3rd-party license compatibility issues on Server Core devices. Server Core users may be unable to install the latest AppCompat FOD after upgrading to build 29574. This appears to be limited to Server Core installations with 3rd-party application licenses that fail compatibility checks after upgrade. This will be addressed in a future build. Upgrading from older builds of Windows Server vNext previews (26525 or older) are not supported. Please perform a clean install of build 29531 or later. Users may experience failures when attempting to upgrade from earlier previews (build 26525 and older). VMs may fail to upgrade or start after upgrade from older preview builds impacting live migration and failover cluster scenarios. 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 vNext 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, 2026. 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.705Views0likes0CommentsWindows Server Datacenter: Azure Edition preview build 29574 now available in Azure
Hello Windows Server Insiders! We welcome you to try Windows Server vNext Datacenter: Azure Edition preview build 29574 in both Desktop experience and Core version on the Microsoft Server Operating Systems Preview offer in Azure. Azure Edition is optimized for operation in the Azure environment. For additional information, see Preview: Windows Server VNext Datacenter (Azure Edition) for Azure Automanage on Microsoft Docs. For more information about this build, see Announcing Windows Server vNext Preview Build 29574 | Microsoft Community Hub.89Views0likes0CommentsAnnouncing Windows Server vNext Preview Build 29574
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 remains Windows Server 2025 in this preview - when reporting issues please refer to Windows Server vNext preview. Build 29531 established a new Server preview baseline build. Please perform a clean install of Build 29531 (or later) using the installation media linked below. Please note: Upgrades from Windows Server vNext preview builds older than 29531 are not supported. We encourage all Windows Server vNext preview users to perform a clean install using 29531 or later to successfully upgrade to future Windows Server vNext preview builds. While upgrades from earlier Windows Server previews (Build 26525 and older) are not technically blocked by setup.exe, a number of known issues have been identified related to upgrades necessitating the establishment of a new baseline build for our Server vNext Preview Program. The new baseline build (29531) will not be Flighted due to upgrade issues. Flighting support resumed with preview build 29550 or later. What's New [NEW] Introducing Quick Machine Recovery in Windows Server vNext Insider Previews. Quick machine recovery (QMR) is now available for Server vNext Insiders to test. This feature enables the recovery of Windows Server devices when they encounter boot critical errors that prevent them from booting. QMR can automatically search for cloud‑based remediations to recover from widespread boot failures significantly reducing the burden on IT administrators when multiple devices are impacted. This supports the goals of the Windows Resiliency Initiative by enabling applicable fixes to be delivered through trusted Windows Update to restore affected devices, helping reduce downtime and minimize manual recovery efforts across enterprise environments. This feature is currently enabled in the latest Server vNext Insider builds for customers to experience test mode. A Group Policy option to enable or disable the feature will be introduced in upcoming builds to provide additional administrative control. To simulate the quick machine recovery experience, use the following commands from an elevated command prompt: 1. Enable test mode: reagentc.exe /SetRecoveryTestmode 2. Configure Windows to boot to Windows Recovery Environment on the next boot: reagentc.exe /BootToRe 3. Reboot your device. The system goes through autoremediation of a simulated crash safely and reboots back to Windows Server. For more information, please review Quick machine recovery (QMR) and Windows Resiliency Initiative. When providing feedback using Feedback hub, please select QMR from the Recovery and Uninstall category in the app. NVMe-over-Fabrics (NVMe-oF) extends the NVMe protocol—originally designed for local PCIe-attached SSDs—across a network fabric. Instead of using legacy SCSI-based protocols such as iSCSI or Fibre Channel, NVMe-oF allows a host to communicate directly with remote NVMe controllers using the same NVMe command set used for local devices. In this Insider build, Windows Server supports: NVMe-oF over TCP (NVMe/TCP), allowing NVMe-oF to run over standard Ethernet networks without specialized hardware. NVMe-oF over RDMA (NVMe/RDMA), enabling low-latency, high-throughput NVMe access over RDMA-capable networks (for example, RoCE or iWARP) using supported RDMA NICs. For more information, please visit: Introducing the Windows NVMe-oF Initiator Preview in Windows Server Insiders Builds | Microsoft Community Hub ReFS Boot is enabled for Windows Server vNext preview builds. Known Limitations ReFS Boot systems create a minimum 2GB WinRE partition. When WinRE cannot be updated due to space constraints, the system may disable WinRE. Disabling WinRE does not remove the partition. If the WinRE partition is deleted and the boot volume is extended over it, this operation is unrecoverable without a clean install. For more information, please visit: Resilient File System (ReFS) overview | Microsoft Learn Feedback Hub app is 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 Server Core Upgrades and AppCompat FOD: Enabling AppCompat FOD after reinstall may fail due to legacy 3rd-party license compatibility issues on Server Core devices. Server Core users may be unable to install the latest AppCompat FOD after upgrading to build 29574. This appears to be limited to Server Core installations with 3rd-party application licenses that fail compatibility checks after upgrade. This will be addressed in a future build. Upgrading from earlier builds of Windows Server vNext previews (26525 or older) are not supported. Please perform a clean install of build 29531 or later. Users may experience failures when attempting to upgrade from earlier previews (build 26525 and older). VMs may fail to upgrade or start after upgrade from older preview builds impacting live migration and failover cluster scenarios. 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 vNext 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, 2026. 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.950Views2likes0CommentsWindows Server Datacenter: Azure Edition preview build 29558 now available in Azure
Hello Windows Server Insiders! We welcome you to try Windows Server vNext Datacenter: Azure Edition preview build 29558 in both Desktop experience and Core version on the Microsoft Server Operating Systems Preview offer in Azure. Azure Edition is optimized for operation in the Azure environment. For additional information, see Preview: Windows Server VNext Datacenter (Azure Edition) for Azure Automanage on Microsoft Docs. For more information about this build, see Announcing Windows Server vNext Preview Build 29558 | Microsoft Community Hub.112Views1like0Comments
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