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Showing posts from May, 2026

Secure Boot vCenter Deployment

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Fully automated PowerShell script to replace expiring Secure Boot certificates  across hundreds of Windows Server VMs — eliminating the need for manual EFI console interaction, FAT32 disks, or per-VM operator involvement.  If you need the full deployment files -  https://github.com/cloudmigrator/vMware 01 // The Problem Microsoft's Boot Certs Are Expiring Every Windows Server VM with Secure Boot enabled in our VMware environment trusts a set of cryptographic certificates that Microsoft issued back in 2011. On 24 June 2026 , those certificates begin to expire — and if we do nothing, those VMs silently fall out of Microsoft's Secure Boot servicing boundary forever. ⚡ Hard Deadline The Microsoft Corporation KEK CA 2011 and Microsoft UEFI CA 2011 both expire on 24 June 2026 . The Windows Production PCA 2011 — which signs the Windows bootloader itself — expires in October 2026 . The good news, per Microsoft's official documentation: machines will not immediately fail to boo...