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Windows 11 24H2 Windows 11 24H2 Out-of-band update
Out-of-band

KB5061977

KB5061977: Cumulative update for Windows 11, version 24H2, May 2025. Hyper-V confidential VMs stop responding or restart unexpectedly

In short

Confidential VMs on Hyper-V with Windows Server 2025 might stop responding or restart unexpectedly. This out-of-band update fixes the issue, which mainly affects Azure confidential VMs.

Does it affect you? Applies to: The update applies to Windows 11, version 24H2. Its Hyper-V fix concerns confidential VMs running on Hyper-V with Windows Server 2025, mainly Azure confidential VMs.

Build
26100.4066
Restart
Required
Review notes Additional details from the official release notes (3) Read notes
  • In short The issue primarily affects Azure confidential VMs; the update fixes the issue for confidential VMs running on Hyper-V with Windows Server 2025.
  • In detail The issue primarily affects Azure confidential VMs; the update fixes the issue for confidential VMs running on Hyper-V with Windows Server 2025.
  • Known issues The Print to PDF issue is addressed in KB5060829.

The official sources are linked at the end of the page.

Microsoft publishes separate notes for this KB for Windows Server.

What changes

Fix 1 change

Hyper-V Platform

For: IT administrators managing Hyper-V

  • Confidential VMs on Hyper-V might stop responding or restart unexpectedly. This mainly affects Azure confidential VMs on Windows Server 2025.1
    Fixes an issue in the direct send path for a guest physical address (GPA).

Known issues

  1. Open Affects: Organizations and IT administrators

    Print to PDF might not work

    After KB5055627, Microsoft Print to PDF might disappear from Printers & scanners. Enabling the feature might return error 0x800f0922.2

    How to apply the workaround Workaround

    Enable Microsoft Print to PDF in Windows Features, or disable and re-enable its optional feature in PowerShell. The final PowerShell command might return error 0x800f0922.2

    Step-by-step instructions, command & download kit
    2 steps powershell.exe · Administrator Instructions (.txt)
    Show steps & kit Hide steps & kit
    Step-by-step procedure
    1. Press Windows + R, enter optional features, and enable Microsoft Print to PDF in the Windows Features dialog.
    2. Or open PowerShell as administrator and run the two commands below.
    powershell.exe · Administrator 
    > Disable-WindowsOptionalFeature -Online -FeatureName Printing-PrintToPDFServices-Features> Enable-WindowsOptionalFeature -Online -FeatureName Printing-PrintToPDFServices-Features

Technical details

Data sheet · Security · Downloads · Components Click to collapse or expand

Data sheet

Released
2025-05-27
Classification
Updates
Type
Cumulative update
Restart
Required
Replaces
KB5058411, KB5055627, KB5059087, KB5055523
+19 earlier KB5053656, KB5053598, KB5052093, KB5051987, KB5050094, KB5050009, KB5048667, KB5046740, KB5046617, KB5044384, KB5044284, KB5043178, KB5043080, KB5041865, KB5041571, KB5040529, KB5040435, KB5039304, KB5039239
Replaced by
KB5060842
VersionBuildChannel
24H2 26100.4066 General availability

Security

No vulnerabilities are listed for this update.

Updated components

38 files changed since the previous update for the same versions.

Top changed componentsFiles
Hyper-V and virtualization10

Sources

Updated
Cited passages from Microsoft's official notes (2)
  1. 1. Fixed: An issue in the direct send path for a guest physical address (GPA) where confidential virtual machines running on Hyper-V with Windows Server 2025 might intermittently stop responding or restart unexpectedly, affecting service availability and requiring manual intervention. support.microsoft.com
  2. 2. Specifically, the Microsoft Print to PDF printer might no longer appear under Settings > Bluetooth & devices > Printers & scanners. support.microsoft.com
Checked automatically: 8 of 8 checks passed, 2 quoted passages · compared with Microsoft's page on Oct 20, 2026
  • Quotes found in the official pages: passed
  • Numbers found in the sources: passed
  • Vulnerabilities from the dossier only: passed
  • Links to allowed domains only: passed
  • Every official change covered: passed
  • Readable plain text: passed
  • Changes confirmed by the file list: passed
  • Sources agree: passed

A second AI read the text against the sources: correctness 3/5, clarity 4/5, completeness 3/5. How we work

Published by The Update Bureau. Written with AI from Microsoft's own documents, checked by rules and a second AI. How we work · Report a mistake