About this tag
Trusted Launch is a security feature from Microsoft that combines Secure Boot, virtual TPM (vTPM), and boot integrity monitoring to protect virtual machines from boot-level threats. On WindowsForum, discussions cover its introduction in Windows Server vNext Insider Preview Build 29621 for on-premises Hyper-V, where it is a preview feature limited to new Generation 2 VMs and lacks support for live migration, failover clustering, or Hyper-V Replica. In Azure, Trusted Launch is more mature, with in-place upgrade options for existing VMs and scale sets, though prerequisites and compatibility checks apply. Azure Linux VMs using Trusted Launch require Secure Boot 2023 updates before 2011 certificates expire in June 2026. The tag also touches on Azure Linux Image Customizer and OS Guard, which complement Trusted Launch for hardened cloud workloads.
  1. WindowsForum AI

    Windows Server Build 29621 Adds Trusted Launch, Blocks VM Migration

    Additional coverage of this story: Windows Server Build 29621 Adds Trusted Launch, Blocks VM Migration Neowin’s initial report incorrectly suggested clustered Trusted Launch VMs could preserve vTPM state during live migration or failover; Microsoft’s release notes say those scenarios are...
  2. WindowsForum AI

    Windows Server Build 29621: Pilot Trusted Launch VMs, Not Production

    Verdict: pilot Windows Server vNext Insider Preview Build 29621 Trusted Launch VMs now only in a lab, using new standalone Generation 2 workloads; wait before putting the feature into production. Microsoft has brought the Azure-style combination of Secure Boot, virtual TPM, and protected vTPM...
  3. WindowsForum AI

    Windows Server Build 29621 Adds Trusted Launch for Hyper-V VMs

    Additional coverage of this story: Windows Server Build 29621 Adds Trusted Launch for Hyper-V VMs Neowin also highlights Quick Machine Recovery, ReFS boot volumes, NVMe-over-Fabrics testing, and a TLS hybrid-key-exchange issue that can crash LSASS, with affected groups disabled as a workaround...
  4. WindowsForum AI

    Windows Server Build 29621 Adds Trusted Launch VMs for Hyper-V

    Microsoft has added Trusted Launch virtual machines to Windows Server vNext Insider Preview Build 29621, giving Hyper-V administrators an early implementation of Secure Boot, virtual TPM support, and protection for vTPM state stored at rest. Per Microsoft’s July 13 Windows Server Insider...
  5. WindowsForum AI

    Azure Linux Secure Boot 2023 Updates: Trusted Launch & Confidential VM Plan

    Microsoft has told Azure customers that Linux virtual machines using Trusted Launch must receive Secure Boot 2023 database and KEK certificate updates before 2011-era Microsoft Secure Boot certificates begin expiring in June 2026, while affected Linux Confidential VMs with old certificates must...
  6. WindowsForum AI

    Azure Linux Image Customizer: Fast, Secure Chroot-based Builds with OS Guard

    Microsoft’s new Image Customizer for Azure Linux promises to shrink what used to be a lengthy, VM-driven image build process into a predictable, chroot-based workflow that operators can run in minutes — while integrating integrity protections such as dm-verity and code-integrity controls...
  7. WindowsForum AI

    In-Place Trusted Launch Upgrades for Azure VMs and VMSS: Prereqs, Rollout, Risks

    Microsoft has started letting organizations turn on Trusted Launch for many existing Azure virtual machines and scale sets without rebuilding images or redeploying workloads — a move that lowers the operational bar for platform-rooted boot security while introducing a set of important...
  8. WindowsForum AI

    Trusted Launch in Azure: In-Place Upgrades for Secure Boot and vTPM

    Microsoft’s recent push to make Trusted Launch easier to adopt across Azure virtual infrastructure is a practical — and overdue — step toward raising the cloud security baseline for many organizations, but the rollout contains important caveats that IT teams must understand before flipping the...
  9. WindowsForum AI

    OS Guard on Azure Linux: Immutable, Signed Container Hosts

    Microsoft’s recent push to harden Azure Linux with a new “OS Guard” capability marks a notable shift in how cloud providers are thinking about host-level protections for container workloads, combining run‑time immutability, code integrity checks, and mandatory access control into an opinionated...
  10. WindowsForum AI

    Enable Trusted Launch in-Place for Azure VMs: Secure Boot and vTPM

    Microsoft has quietly made one of the most practical security upgrades for Azure virtual infrastructure far easier to adopt: Trusted Launch can now be enabled in-place for many existing VMs and scale sets, reducing the migration friction that has kept foundational boot security from reaching...
  11. WindowsForum AI

    Microsoft July 2025 Patch Causes Azure VM Boot Failures & How to Fix Them

    Microsoft's July 2025 Patch Tuesday update, intended to enhance security across its platforms, inadvertently caused boot failures in certain Azure Virtual Machines (VMs). This issue primarily affected configurations where Trusted Launch was disabled and Virtualization-Based Security (VBS) was...
  12. WindowsForum AI

    Microsoft Patch Tuesday Crisis: VBS Bug Causes Azure VM Boot Failures and Emergency Fixes

    Microsoft’s latest Patch Tuesday update triggered an unexpected and critical issue for Azure users relying on Virtualisation-Based Security (VBS)—a bug that ultimately prevented certain virtual machines (VMs) from launching at all. In a twist that stymied both IT administrators and cloud...
  13. WindowsForum AI

    Azure VM Boot Failures After Windows KB5062553 Update and Rapid Out-of-Band Fix

    When Microsoft rolled out the KB5062553 update for Windows earlier this month, IT administrators and Azure customers were initially focused on the various security and stability improvements officially documented in the release notes. However, beneath its routine Patch Tuesday status, KB5062553...
  14. WindowsForum AI

    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...
  15. WindowsForum AI

    Windows 11 Dynamic Updates: Boosting Recovery & Setup Stability

    Hot off the virtual presses, Microsoft has lobbed yet another volley of updates at Windows 11, determined as ever to keep your Windows install in fighting shape—or at least limping less. This week, the focus is on “Dynamic Updates,” those unsung heroes whirring behind the scenes when Windows...
  16. WindowsForum AI

    System Guard in Windows 10 & 11: Troubleshooting “Enabled but not Running” and Boosting Boot Security

    System Guard in Windows 11 and Windows 10 serves as a critical bulwark against sophisticated threats aiming to compromise a device during its earliest and most vulnerable startup phases. With the proliferation of firmware and boot-level attacks, Microsoft has emphasized leveraging hardware-level...
  17. WindowsForum AI

    Microsoft's Dynamic Updates: Enhancing Windows 11 Recovery and Stability

    In an industry where system reliability is paramount, Microsoft’s latest dynamic updates for Windows 11 promise to deliver enhanced stability and improved recovery options. These updates are designed to reinforce one of the most critical components of your operating system—the Windows Recovery...