Windows Server Preview Build 25158 is now available
Microsoft has released a new version of Windows Server Insider Preview. This month’s build 25158 is now available for download as an ISO from the Windows Server Insider website with a VHDX, but even though this uses the same underlying kernel as the Windows 11 Sun Valley 3 development ( 23H2), as usual, there’s no changelog to speak of, so it’s unclear what’s new or broken in this build.
The Server brand has still not been updated and remains Windows Server 2022 in preview. Additionally, Microsoft is asking Insiders to refer to these builds as vNext rather than Windows Server 2022 which is already in the market.
Windows 11 build 25158, which is the consumer development of Sun Valley 3, was also released today in the Windows Insider Dev Channel, which means these editions will continue to sync.
This release does not contain any release highlights or known issues.
Downloads available:
- Overview of Windows Server VNext in ISO format in 18 languages,
and in VHDX format in English only.- Windows Server Preview VNext VHDX
- Overview of Microsoft Server languages and optional features
- Windows 2110.2 Admin Center Preview
Keys are only valid for preview builds:
- Server standard: MFY9F-XBN2F-TYFMP-CCV49-RMYVH
- Data center: 2KNJJ-33Y9H-2GXGX-KMQWH-G6H67
To download, registered Insiders can visit the Windows Server Insider Preview download page here. You can also visit the Getting started with the server page here on the Windows Insider portal for business to register for the Windows Insider program if you are not already registered.
Microsoft also notes that this preview will expire on September 15, 2022.

Microsoft also asks server administrators to also review Windows Server Vnext Datacenter: Azure Edition build 25120 on the Microsoft Server Operating Systems Preview offering on Azure. For more information, you can see the following link for Azure Automanage on Microsoft Docs.
You can find the official announcement here.
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