Generally Available: Upgrade existing Azure Gen1 VMs to Gen2-Trusted launch

Announcing general availability support to enable Trusted launch on existing Azure Gen1 VMs by upgrading the Gen1 VM to Gen2-Trusted launch. This will help improve the foundational security of existing Azure VMs. 

Trusted Launch VMs provide foundational compute security to Azure Generation 2 VMs by enabling Secure Boot and vTPM capabilities. Trusted Launch protects OS against rootkits, boot kits and enables attestation by measuring the boot chain of VM.