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Microsoft выпустила Windows Server Insider Preview 26040, первую сборку Windows Server 2025 для администраторов, зарегистрированных в программе инсайдеров.
Это первая версия следующего выпуска Windows Server Long-Term Service Channel (LTSC), которая включает варианты установки Desktop Experience и Server Core для Datacenter и Standard, Annual Channel для Container Host и Azure Edition для виртуальных машин.
Windows Server 2025 представляет альтернативу SMB вместо QUIC. Это позволяет администраторам переключаться с использования порта SMB через QUIC UDP/443 по умолчанию на порт по их выбору.
Microsoft представила поддержку альтернативных портов SMB с выпуском предварительной версии Windows 11 Insider Preview Build 25992 для канала Canary в ноябре. В то время компания заявила, что клиент SMB может подключаться к серверу SMB через TCP, QUIC или RDMA, используя сетевые порты, отличные от установленного по умолчанию.
Теперь Microsoft также объявила о запуске тестовой версии для инсайдеров Windows Server, позволяющей администраторам автоматически устанавливать новые сборки Insider через Центр обновления Windows вместо развёртывания их вручную.
Компания расширит пробную версию Windows Server Insider дополнительными каналами предварительной оценки.
Windows Server с возможностями рабочего стола получит те же возможности «Электронная почта и учётные записи», что и Windows 11, а также расширенный охват устройств Bluetooth и службу беспроводной локальной сети Wi-Fi, включённую по умолчанию для сценариев Edge. Для этого понадобятся подходящее оборудование и драйверы.
Срок действия этой предварительной сборки Windows Server истекает 15 сентября 2024 года.
Ранее выяснилось, что обновление KB5034129 для Windows Server 2022 нарушает работу Microsoft Edge, Chrome и Firefox и продуктов Adobe. Пользователи заявляли, что браузеры и приложения открываются с пустыми страницами. Microsoft подтвердила, что в курсе сбоя и изучает проблему.
Microsoft has released the first Windows Server preview build of 2024 for members of the Windows Server Insider Program. The build number is 26040, which is the same as the new Canary Channel preview build for Windows 11.
This new version is also the first to support the Server Flighting feature for updates, and it has been branded as Windows Server 2025. Here is the changelog:
Announcing Windows Server Preview Build 26040
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 has been updated for the upcoming release, Windows Server 2025 in this preview — when reporting issues please refer to Windows Server 2025 preview.
What’s New
Windows Server Flighting is here!!
[NEW] If you signed up for Server Flighting, you should receive this new build automatically later today (Friday, January 26, 2024).
Join Server Flighting
To set up flighting on Server (build 26010 or later), just navigate to Settings > Windows Update > Windows Insider Program to opt in your device. Flighting will only be available for the Canary Channel and flights for Server begin with build 26040. Our intention is to flight the same builds as client (desktop) for Server flights but the schedule in which we release Server flights might differ slightly (for example – Server releases bi-weekly). Flighting for Server applies to the Desktop Experience only.
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 Accounts: Email & Accounts is now consistent with Windows 11. Please note, domain join will still be necessary for most scenarios.
- Call to action: Please try adding Microsoft accounts and/or work accounts along with relevant apps that take advantage of this.
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!
[NEW] SMB over QUIC alternative server port
Starting with Insider Build 26040, the SMB server now supports listening on an alternative network port for SMB over QUIC instead of hardcoded default. Previously, SMB over QUIC only supported QUIC(UDP)/443, but now you can choose any unused port from 1-65535. Windows Server Insider does not support configuring alternative SMB server TCP or RDMA ports at this time; if you organization has scenarios where it would be useful to configure those ports, message Ned Pyle, SMB PM, at About Ned Pyle — Microsoft Community Hub.
You can specify an alternative SMB over QUIC server port using the New-SmbServerAlternativePort PowerShell cmdlet.
For more information on using this option, review https://aka.ms/SMBAlternativePorts.
Known Issues
Setup: Some users may experience overlapping rectangle voids following mouse clicks during «OOBE» setup. This is a graphics rendering issue and will not prevent setup from completing. This issue will be addressed in a future release.
WinPE — Powershell Scripts: Applying the WinPE-Powershell optional component does not properly install Powershell in WinPE. As a result, Powershell cmdlets will fail. Customers who are dependent on Powershell in WinPE should not use this build.
The new Feedback Hub app is not functioning properly in this release due to known issues. These will be addressed in a future release. Please continue to submit feedback as described in the «We value your feedback!» section below.
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.
NOTE: Microsoft has released Windows Server 2025 which can be downloaded for evaluation purposes from this article.
UPDATE: Windows Server 2025 (VNext) Insider Preview build 26311 released.
Today Microsoft released a new Insider Preview build of Windows Server 2025 (vNext) and the build number is 26311. If you are registered with “Windows Insiders for Business” program, you can download and install the build. It comes with new features, bug fixes and improvements.
Table of Contents
- What is Windows Server 2025 or vNext Insider Preview Build?
- What’s New in Latest Windows Server 2025 Insider Preview Build?
- Known Issues in Latest Windows Server 2025 Insider Preview Build
- How to Install or Upgrade to New Windows Server 2025 Insider Preview Build?
- Download Windows Server 2025 Offline ISO or VHDX Files
- Product Key or License Key to Activate Windows Server 2025 Preview Builds
- Expiry Date of Windows Server 2025 Insider Preview Builds
What is Windows Server 2025 or vNext Insider Preview Build?
Windows Server Insider Preview builds are testing builds of the upcoming version of Windows Server operating system. These builds are released for testing purposes only. You can consider these builds similar to Windows 10 and Windows 11 Insider Preview builds.
If you want to check new features and changes which will become part of the next version of Windows Server OS, you can download and install Windows Server Insider Preview builds.
These builds install 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.
These builds can also be used to install the next Windows Server Annual Channel for Containers Preview that contains Server Datacenter Core edition.
Microsoft has not finalized the branding or name of the next Windows Server version, so at the moment the Preview builds display the installed OS as Windows Server 2022.
What’s New in Latest Windows Server 2025 Insider Preview Build?
- Windows Defender Application Control for Business (WDAC): A software-based security layer that reduces attack surface by enforcing an explicit list of software that is allowed to run. For Windows Server 2025, Microsoft defined ‘default policy’ is provided which can be applied to the server via PowerShell cmdlets, powered by ‘Security configuration platform called ‘OSconfig’.
- Windows Server 2025 Security Baseline Preview: You can now enable security right from the start by applying the recommended security posture for your device or VM role through application of a tailored security baseline, with over 350 preconfigured Windows security settings that help you apply and enforce granular security settings that support best practices recommended by Microsoft and Industry standards. The Windows Server 2025 Security Baseline content are organized into three categories based on server role: Domain Controller (DC), Member Server and Workgroup Member.
- Windows Admin Center (WAC): Beginning with build 26252, Windows Server 2025 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. Simply search for “Windows Admin Center Setup” from the start menu to get started. Note: You must be running a desktop version of Windows Server 2025 Datacenter or Standard preview to access this feature.
- Delegated Managed Service Accounts (dMSA): A new account type known as delegated Managed Service Account (dMSA) is now available that allows migration from a traditional service account to a machine account with managed and fully randomized keys, while disabling original service account passwords. Authentication for dMSA is linked to the device identity, which means that only specified machine identities mapped in AD can access the account. Using dMSA helps to prevent harvesting credentials using a compromised account (kerberoasting), which is a common issue with traditional service accounts.
- More Server Message Block (SMB) protocol changes for QUIC, signing, and encryption.
- Windows Server Flighting: If you signed up for Server Flighting, you should receive this new build automatically later today. To set up flighting on Server (build 26010 or later), just navigate to Settings > Windows Update > Windows Insider Program to opt in your device. Flighting will only be available for the Canary Channel and flights for Server begin with build 26040. Flighting for Server applies to the Desktop Experience only.
- Try the “WinGet” command line utility on Windows Server: The WinGet command line utility enables installing applications and other packages from the command line. Simply type winget on the command line for a list of available commands to get started. For example, you can install the latest version of Powershell using
winget.exe install 'Microsoft.PowerShell'command. - New feedback hub app for Server Desktop users.
- Win32-OpenSSH server side component (SSHD) is now installed by default.
- New Desktop wallpaper
- Improvements to Settings -> Accounts page.
- Improvements to Bluetooth and Wi-Fi
- Bug fixes and general improvements
Known Issues in Latest Windows Server 2025 Insider Preview Build
- Sysprep unable to generalize images. There is a known issue in build 26280.5000 that prevents images from being generalized via sysprep. The issue is understood and will be fixed in a future release.
- Flighting: The label for this flight incorrectly references 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.
- WinPE – Powershell Scripts: Applying the WinPE-Powershell optional component does not properly install Powershell in WinPE. As a result, Powershell cmdlets will fail. Customers who are dependent on Powershell in WinPE should not use this build.
- If you are validating upgrades from Windows Server 2019 or 2022, Microsoft does 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, Microsoft does not recommend that you install this build.
How to Install or Upgrade to New Windows Server 2025 Insider Preview Build?
To test drive these builds, you’ll need to register for Windows Server for Business program using following link:
Register for Windows Server 2025 (vNext) Insider Preview Builds
After registration, you’ll be able to download and install these preview builds in your devices.
Download Windows Server 2025 Offline ISO or VHDX Files
Microsoft provides full offline ISO and VHDX files of Windows Server Insider Preview builds so that users can install them in multiple computer systems.
You can download the offline ISO and VHDX setup files using following official page:
Download Windows Server 2025 (vNext) Offline ISO and VHDX Files
You’ll also be able to download “Microsoft Server Languages and Optional Features Preview” and “Windows Admin Center 2110.2 Preview” from the above mentioned download page.
Product Key or License Key to Activate Windows Server 2025 Preview Builds
You’ll need to enter product key to activate these Insider Preview builds of Windows Server. Microsoft has provided official serial keys to activate different versions of Windows Server OS:
Windows Server 2025 VNext Standard Edition:
MFY9F-XBN2F-TYFMP-CCV49-RMYVH
Windows Server 2025 VNext Datacenter Edition:
2KNJJ-33Y9H-2GXGX-KMQWH-G6H67
Azure Edition does not accept a key.
Expiry Date of Windows Server 2025 Insider Preview Builds
Since these are preview builds for testing purposes only, these builds come with expiry date or evaluation period.
You’ll be able to use these builds till September 15, 2024.
Also Check:
Windows 11 New Insider Preview Build Available for Download
Windows 10 New Insider Preview Build Available for Download
Microsoft Office New Insider Preview Build Available for Download
You are here: Home » Windows 10 » Windows Server 2025 Public Preview Build 26311 Available for Download
The latest version of Microsoft Windows Server is coming along very nicely, as we can download and test it out via the Windows Server Preview program via the Windows Server Insiders. Recently, Microsoft released the first Windows Server 2025 Preview Build release. Let’s look at this along with the new installation screens you will see when installing the Windows Server 2025 operating system.
Table of contents
- Preparing for Installation
- Installing Windows Server 2025
- Windows Server 2025 Features: What’s New?
- New Active Directory functional levels
- Hyper-V and Storage
- Windows Server Hotpatching
- Networking: Enhanced Control and Optimization
- Administration and Feedback in Windows Server 2025
- New Windows Server Flighting
- Joining Windows Insiders
- Wrapping up Windows Server 2025
Preparing for Installation
Before installing Windows Server 2025, ensure your systems meet the appropriate hardware requirements. For my test environment, I will be using a VMware vSphere virtual machine with 4 processors and 8 GB of RAM.
Download the Windows Server 2025 preview via the Insider Program download page. The download is available in ISO and VHDX formats.
Once you confirm the download type and the language, you can click the Download Now button to download the installation file.
Installing Windows Server 2025
If you are looking to install Windows Server 2025 in VMware vSphere, you can connect directly to your ESXi 8.0 Update 2 host and you will see an option for Guest OS version for Windows Server 2025 (64-bit). In vCenter, you won’t see this option yet.
You can see the hardware I have configured for the Windows Server 2025 VM.
Booting the vNext installation media.
New screens! First screen we are asked to select the Microsoft server languages, including the language and time and currency format.
Select your keyboard settings.
ON the new Select setup option screen, you will see you have three options:
- Install Windows Server
- Repair my PC
- Launch the legacy experience
The product key screen.
Enter the product key provided by Microsoft. Based on the product key, the installer will either display the options for Windows Server Standard edition or Windows Server Datacenter.
Microsoft has provided free keys on this page for use with Windows Server 2025 Standard and Datacenter: Announcing Windows Server Preview Build 26040 – Microsoft Community Hub.
A quick note about the differences between Standard and Datacenter. Dataenter edition generally makes sense if you are running virtual machines and want to be licensed for Windows on your virtualization platform.
Select the image you want to install:
- Windows Server 2025 Datacenter – this is Server Core installation options
- Windows Server 2025 (Desktop Experience)
Accept the EULA.
Now, we select the location to install Windows Server. You will see your hard disk here.
Ready to install Microsoft Windows Server. Click the Install button.
Now we see the Installing Windows Server screen.
The server boots after the installation.
Set the password for the Administrator account.
CTRL+ALT+DEL to login.
Logging into the Administrator.
Send diagnostic data to Microsoft configuration.
I am still surprised to see Server Manager. You can see that Server Manager is still installed to take care of adding server roles like DNS DHCP, managing group policy, backup, restore, managing services, launching PowerShell, etc.
One of the new things you will see is the preinstallation of the Azure Arc agent. Windows Server 2025 is now fully ready to integrate with Microsoft Azure. We saw this start with Windows Server 2019 with the Azure network adapter and other features. Then we saw even more integrations with Windows Server 2022. Now we are seeing the culmination of efforts from Microsoft on this front.
Windows Server 2025 Features: What’s New?
Windows Server 2025 introduces a range of new features that enhance server functionality and management.
New Active Directory functional levels
One of the new things about Windows Server 2025 is the new Active Directory functional level. We haven’t had a new functional level since Windows Server 2016. So the new functional level in Windows Server 2025 is definitely a new enhancement to note. Check out my post covering that topic specifically here: Windows Server 2025: Initial Glimpse with New Domain Functional Level.
Hyper-V and Storage
Windows Server 2025 has many new Hyper-V technologies built-in. Windows Server 2025 marks a significant advancement in server management, offering robust virtualization capabilities and intelligent automation. Note the following:
- Windows Server vNext boosts IOPS by 90% on NVMe SSDs.
- Includes NVMe over Fabric (NVMe-oF) support.
- Features a 3x performance enhancement in Storage Replica.
- Offers Thin Provisioned storage solutions.
- Supports Stretched Clustering for Storage Spaces Direct (S2D).
- Enables certificate-based VM Live migration in AD-less clusters.
- Improves Cluster Aware Updating for enhanced resilience.
- Integrates GPU-P support in Hyper-V, with Live Migration capability.
- Incorporates NetworkATC support in Windows Server.
- Introduces new ReFS native deduplication and compression, tailored for high-activity data like virtual machines.
Windows Server Hotpatching
One of the anticipated features to come to on-premises environments is Hotpatching. Windows Server Hotpatching allows for seamless Windows Update security updates without reboots.
Networking: Enhanced Control and Optimization
There are advanced networking features in Windows Server 2025, such as alternative SMB server TCP ports and QUIC alternative server port configuration. Microsoft has added a wireless LAN Service in Windows Server 2025.
Administration and Feedback in Windows Server 2025
Windows Server 2025 introduces the new Feedback Hub app and an enhanced Windows Event Log Service. These provide deeper insights into server performance and streamlined feedback mechanisms for administrators.
New Windows Server Flighting
Microsoft has announced something new with the Insider Preview editions. You can stay up-to-date with the latest server technology by participating in what they are calling Windows Server flighting. What is it? The program allows you to test and experience new features as they are released, so your Windows Server Insider Preview will always stay up-to-date.
Joining Windows Insiders
Joining the Windows Insiders program is not difficult. It basically involves just signing up with an email address. Joining the Windows Insiders program will grant you access to the vNext previews as well as the Windows client releases that are coming down the pipes. It is a great way to beta test the features before they make it to a GA release. You can sign up for the Windows Insiders program here: The Windows Insider Program (microsoft.com).
Wrapping up Windows Server 2025
Windows Server 2025 is on the cutting edge of new technology and has a very similar look and feel to Windows 11. In terms of the cloud, Microsoft has deep and native integration with Microsoft Azure, including the Azure Arc agent, which is already preinstalled in the operating system out of the box.
Let me know in the comments what you think about Microsoft’s new Server operating system as well as your thoughts on the new installation screens. With the Windows Insider program, you can get your hands on the Preview Build right now. With the new flighting concept, you can get your hands on new builds seamlessly. It will be interesting to see how it progresses over the next few builds. It will undoubtedly be an operating system that most admins will want to upgrade to reap the benefits of the new AD functional level, hotpatching to install patches, Hyper-V features, etc.
В конце января 2021 года вышла новая версия Windows Server 2022 в редакциях Standard и Datacenter, но пока только для тестирования «Insider Preview», т.е это ознакомительный дистрибутив, который доступен для всех желающих, которые хотят бесплатно протестировать новую версию Windows Server 2022 и ознакомиться с нововведениями системы.
Скачать Windows Server 2022 Вы можете как с официального сайта Microsoft, так и с нашего сервера.
— Скачать с нашего сервера (RUS) (Build 20287)
MD5 — 16920C09FE9FD55486762D0306CF58B0
SHA-1 — 1820BB9EAD6A46E3A399564A011AFEA297BBA64B
— Скачать с нашего сервера (ENG) (Build 20287)
MD5 — A6C3833D3B88A73DCA2B16CE89B0486E
SHA-1 — 97162758242C65AC568AAC8391A25EDB459A340D
— Скачать с официального сайта Microsoft
Чтобы скачать с сайта Microsoft, Вам нужно перейти по ссылке: https://www.microsoft.com/en-us/software-download/windowsinsiderpreviewserver
Авторизоваться там под Вашей учетной записью Microsoft, чтобы скачивание было доступно. Далее, в выпадающем меню выберите пункт «Windows Server LTSC Preview ISO», после нажмите на кнопку «Confirm».
Далее снова в выпадающем меню выберите нужный Вам язык дистрибутива, и далее так же нажмите на кнопку «Confirm».
Теперь можете нажать на кнопку «Download Now», чтобы приступить к непосредственному скачиванию.
Установка возможна двух версий — Standard и Datacenter. Помимо всего, так же доступна установка системы без рабочего стола (Core).
Лицензионный ключ активации Windows Server 2022 от