Share via

Failed In-place upgrade from Windows Server 2022 to Windows Server 2025 (Hyper-V 2019 VM)

Bojan Zivkovic 486 Reputation points
2024-12-17T14:45:08.1766667+00:00

Hi, does anyone have same issue as I do - in-place upgrade from Windows Server 2022 to Windows Server 2025 on Hyper-V 2019 VM fails after 90% and first reboot. VM tries to boot and soon gets turned off. I have no issues with this upgrade path on vSphere 8 VM.

Fresh installation of Windows Server 2025 did not work either until 2024-11 CU for Windows Server 2019 was installed on Hyper-V 2019 hosts.

Windows Server
Windows Server
A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
13,478 questions
Hyper-V
Hyper-V
A Windows technology providing a hypervisor-based virtualization solution enabling customers to consolidate workloads onto a single server.
2,773 questions
0 comments

2 answers

Sort by: Most helpful
Most helpful Newest Oldest
  1. Ian Xue 38,726 Reputation points Microsoft Vendor
    2024-12-19T07:06:02.1866667+00:00

    Hi Bojan,

    Thanks for your post. Microsoft has confirmed this is a known issue with Windows Server 2025. For Workaround: Move non-boot disks to a separate NVME or SCSI controller.

    Reference: https://learn.microsoft.com/en-us/windows/release-health/status-windows-server-2025

    Best Regards,

    Ian Xue

    If the Answer is helpful, please click "Accept Answer" and upvote it.

    0 comments
  2. Bojan Zivkovic 486 Reputation points
    2024-12-19T18:47:15.39+00:00

    Does this apply to Hyper-V VMs only and to both upgrade/fresh installations? Asking because my vSphere environment also uses iSCSI storage but not problems there.

Your answer

Answers can be marked as Accepted Answers by the question author, which helps users to know the answer solved the author's problem.