DSN-2026-001 Dell Proactive Messaging Regarding Upcoming Microsoft Secure Boot Certificate Expiration
Summary: Microsoft Secure Boot 2011 certificates expire starting June 2026. Dell customers should begin examining their internal assets and processes to ensure that they are ready for the upcoming Microsoft certificate change. ...
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Security Article Type
Security KB
CVE Identifier
N/A
Issue Summary
Details
Secure Boot certificates are used as part of the Secure Boot process which helps protect your computer from bootkits, a type of malware designed to infect a customer’s boot loader or boot process, enabling malicious code to run on the computer. Once the certificates expire, the computer is no longer able to get updates for the Windows Boot Manager and the Secure Boot components.
Microsoft has provided the following articles for context and further details on secure boot certificates and the upcoming expiration:
Recommendations
To further assist our customers, Dell has created the following KB article with details and instructions on identifying Dell systems with expired secure boot certificates and performing updates to the new version:
https://www.dell.com/support/kbdoc/en-us/000347876/microsoft-2011-secure-boot-certificate-expiration
Customers are encouraged to review the aforementioned articles and apply new secure boot certificates at their earliest convenience.
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Affected Products
Product Security InformationArticle Properties
Article Number: 000412391
Article Type: Security KB
Last Modified: 14 Jan 2026
Version: 2
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