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Announcement on Windows Server 2025+AMD instance start failure after updating patch KB5060842

Background and temporary solution

On June 16, 2025, Alibaba Cloud discovered that AMD-specification instances created using Windows Server 2025 images will encounter a blue screen problem when the system is restarted after installing Microsoft's June cumulative update patch KB5060842.

If you have installed the patch and encounter a blue screen problem, it is recommended to take the following temporary solutions:

● Roll back the cloud disk through an existing snapshot to quickly restore business. After the business is restored, do not install the patch KB5060842, or change the instance specification to Intel specifications (see the document for all specification families).

If there is no available snapshot, please submit a work order to Alibaba Cloud.

If you have not installed the patch yet, do not install it yet. At present, the WSUS service officially provided by Alibaba Cloud has removed the patch KB5060842 to prevent users from downloading the patch.

Affected Scope

All AMD-specification instances created using Windows Server 2025 images will encounter a blue screen issue when restarting the system after updating the patch KB5060842.

The images affected by this issue include all public image versions of Windows Server 2025 and custom images based on these OS versions, including:

Windows Server 2025 Datacenter 64-bit English version

Windows Server 2025 Datacenter 64-bit Chinese version

Windows Server 2025 Datacenter 64-bit English UEFI version

Windows Server 2025 Datacenter 64-bit Chinese UEFI version

Windows Server 2025 Datacenter 64-bit English version (without GUI)

Windows Server 2025 Datacenter 64-bit Chinese version (without GUI)

Windows Server 2025 Datacenter 64-bit English UEFI version (without GUI)

Windows Server 2025 Datacenter 64-bit Chinese UEFI version (without GUI)

The specifications affected by this issue are all AMD specifications, including but not limited to:

ecs.r7a, ecs.c7a, ecs.g7a

ecs.r8a, ecs.r8ae, ecs.c8a, ecs.c8ae, ecs.g8a, ecs.g8ae

ecs.r9a, ecs.r9ae, ecs.c9a, ecs.c9ae, ecs.g9a, ecs.g9ae

Appendix

The screenshots of the blue screen problem are as follows:

Stop code: UNSUPPORTED_PROCESSOR

蓝屏截图

After multiple startup failures, the following interface will eventually appear:

最终截图