Microsoft has issued an emergency update to address a bug that prevents Azure virtual machines from launching when certain security settings are enabled. This fix is crucial for maintaining the stability of VMs affected by a kernel initialization issue caused during July updates. #AzureVM #VBS #TrustedLaunch
Keypoints
- Microsoft released an out-of-band update to fix a critical bug impacting Azure VMs.
- The bug affected Windows Server 2025 and Windows 11 24H2 when VBS was enabled but Trusted Launch was disabled.
- The issue was caused by a kernel initialization error introduced during July Patch Tuesday updates.
- Admins can verify their VMs’ impact by checking VM types and Virtualization-based Security status.
- Microsoft recommends installing the new update and activating Trusted Launch to prevent similar issues.