KB5061979: [Hyper-V Platform] Fixed.

May 27, 2025—KB5061979 (OS Builds 19044.5859 and 19045.5859) Out-of-band

Summary
This article lists the fixed issues and quality improvements included in this out-of-band update.

This update includes security and quality improvements that were a part of updates KB5058379 (released May 13, 2025) and KB5061768 (released May 19, 2025). The following is a summary of the fixed issues and quality improvements included in this out-of-band update. If there are new features, it lists them as well. The bold text within the brackets indicates the item or area of the change we are documenting. ​​​​​​​

- [Hyper-V Platform] Fixed: An issue in the direct send path for a guest physical address (GPA). This issue caused confidential virtual machines running on Hyper-V with Windows Server 2022 to intermittently stop responding or restart unexpectedly. As a result, service availability was affected, and manual intervention was required. This problem primarily impacted Azure confidential VMs
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If you installed earlier updates, only the new updates contained in this package will be downloaded and installed on your device.