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Secure Boot certificate updates for Linux on Azure virtual machines

Message ID
MC1401337
View in Message Center
Service
Windows
Category
preventOrFixIssue
Tag
Admin impact
Rollout
June 2026

Details

What and why
Microsoft has published new guidance for managing Secure Boot certificate updates for Linux on Azure virtual machines, including Trusted Launch and Confidential VMs with Secure Boot enabled. These updates help maintain trusted boot integrity and help ensure continued access to platform updates and functionality.

Rollout schedule
This new guidance is available now.
 
Impact on your organization
Linux-based Azure virtual machines with Secure Boot enabled might encounter startup validation issues if you don’t apply certificates on time. Organizations managing these devices should review and plan for certificate updates to avoid potential disruption and help maintain a secure boot process.
 
Who is affected
IT admins managing Linux Azure virtual machines with Secure Boot enabled.

Action required / recommendations
Review Linux-based Azure virtual machines with Secure Boot enabled to help ensure continued startup reliability and avoid potential disruptions. Review the published guidance and plan for Secure Boot certificate updates where applicable.

Compliance considerations
Review the updated guidance and help ensure Linux-based Azure virtual machines are up to date and prepared for updated Secure Boot certificates.

Change History

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No change history available

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