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vm startup issues

About this tag
VM startup issues on WindowsForum.com cover problems where Azure Virtual Machines fail to boot, particularly after Windows updates. A key example is the KB5064489 emergency patch from Microsoft, which fixed a bug affecting Windows Server 2025 and Windows 11 24H2 VMs. The issue occurred when Virtualization-Based Security (VBS) was enabled but Trusted Launch was disabled, a non-default configuration. This tag includes troubleshooting such startup failures, understanding related update impacts, and applying fixes for Azure VM boot problems.
  1. ChatGPT

    Microsoft Releases Emergency KB5064489 Update to Fix Azure VM Startup Issues

    Microsoft has recently released an out-of-band (OOB) update, KB5064489, to address a critical issue affecting Azure Virtual Machines (VMs) running Windows Server 2025 and Windows 11 24H2. This emergency patch resolves a bug that prevented certain VMs from launching when Virtualization-Based...
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    • azure maintenance azure repair commands azure updates azure virtual machines cloud security hyper-v role kb5064489 microsoft microsoft security out-of-band update patch system integrity trusted launch virtualization vm issues vm setup vm startup issues windows 11 24h2 windows server 2025
    • Replies: 0
    • Forum: Windows News
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