Windows Server Build 26252 is here and aside from its new features, it has a very tricky bug

The build is now available to download... but be careful!

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Windows Server Build 26252

Microsoft released the Windows Server Preview Build 26252, and the patch is finally bringing new features after the last one didn’t.

Firstly, this is not a typical update. It is an introduction to the next Windows Server Long-Term Servicing Channel (LTSC), which contains the Desktop Experience and Server Core installation options for Datacenter and Standard editions.

Windows Server Build 26252 also introduces an annual channel for container hosts and Azure Edition solely for VM evaluation.

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).

Microsoft

Windows Server Build 26252 also introduces the Windows Admin Center (WAC). From this build onwards, you can download and install the WAC directly from your Windows Server Desktop. It’s as if they are simplifying our lives step by step. Go to the start menu and look for “Windows Admin Center Setup.” You will find it easily. But remember, this is possible only when you have a desktop version of the Windows Server 2025 Datacenter or Standard Preview.

Another cool feature is delegated Managed Service Accounts (MSA). This feature allows for a significant change from old-style service accounts to machine accounts. These machine accounts have managed and fully randomized keys, which helps avoid annoying credential harvesting attacks.

Windows Server Build 26252 also brings changes to the Feedback Hub app, which is now provided for Server Desktop users. For those dealing with the 0% progress bug when upgrading, the ISO media download option is suggested. Microsoft also acknowledges some issues, such as the Access denied error in Diskpart or the peculiar label swap, which could make you believe you’re installing Windows 11.

If you’re an Insider, go to the Windows Server Insider Preview download page, and get the latest Build 26252.

And if you’re a regular Windows Insider, remember that KB5040527 to the Release Preview Channel in Windows 11 is now available. Fresh Windows 11 24H2 ISOs are also available for clean installations.

More about the topics: Windows 11, Windows Update