2090 Secure Boot Certificate Updates – Impact on SecureDoc

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1. Summary / Purpose

This Knowledge Base article outlines Microsoft’s Secure Boot certificate updates and evaluates their impact on SecureDoc (SD) pre-boot authentication.
This document also provides results from QA testing conducted on Windows 10 and 11 environments.

2. Issue

Microsoft has published updates related to Secure Boot certificate changes:

Question: Do we need to take any action for SecureDoc with respect to these Secure Boot certificate changes?

3. Applies To

  • SecureDoc versions prior to 9.2

  • SecureDoc 9.2

  • Windows 10 / 11 devices with Secure Boot enabled

4. Impact Assessment

4.1 SecureDoc Versions Before 9.2

Status: Pending further testing and validation.

Additional analysis is required to confirm compatibility with Microsoft Secure Boot CA changes.

Note: Further ongoing testing …Pending

4.2 SecureDoc Version 9.2

SecureDoc 9.2 pre-boot is signed using the 2011 Secure Boot certificate.

Based on validation results:

  • SecureDoc 9.2 continues to boot successfully even after the 2011 certificate expiration.

  • Systems boot normally with Secure Boot enabled.

  • Functionality is unaffected even after Secure Boot CA certificate updates.

Conclusion: SecureDoc 9.2 does not require changes or updates to remain functional with Microsoft’s updated Secure Boot certificate policies.

5. Environment

  • Operating Systems: Windows 10, Windows 11

  • Secure Boot: Enabled

  • Hardware: Dell Latitude 7490, Microsoft Surface Pro 7, Lenovo ThinkPad P50s, Lenovo ThinkPad E15 Gen 4, HP EliteBook 830 G9

  • SecureDoc Version: 9.2.000.291

6. QA Validation Testing

6.1 Objective

Validate SecureDoc 9.2 behavior when:

  • Secure Boot is enabled

  • BIOS system date exceeds certificate expiration

  • Secure Boot CA certificates are updated

6.2 Test Case 1: BIOS Date Advanced to September 1, 2026

Test Steps:

  1. Enable Secure Boot

  2. Deploy SecureDoc and confirm successful pre-boot login

  3. Change BIOS date to September 1, 2026

  4. Save and reboot

  5. Validate SecureDoc pre-boot loads successfully and user login works

Devices Tested:

Device

SES Build

OS Version

SWE/HWE

Result

Dell Latitude 7490

9.2.000.291

Windows 11 24H2 Pro (26100.7623)

HWE

Pass

Microsoft Surface Pro 7

9.2.000.291

Windows 11 24H2 Pro (26100.7462)

SWE

Pass

Lenovo ThinkPad P50s

9.2.000.291

Windows 10 22H2 Pro (19045.6456)

HWE

Pass

ThinkPad E15 Gen 4

9.2.000.291

Windows 11 23H2 Ent (22631.6491)

HWE

Pass

HP EliteBook 830 G9

9.2.000.291

Windows 11 25H2 Pro (26200.7623)

HWE

Pass

Outcome: SecureDoc 9.2 boots normally even with a future-dated BIOS beyond certificate expiry.

6.3 Test Case 2: Secure Boot CA Certificate Updated + Future BIOS Date

  • SecureDoc pre-boot login loads successfully — Pass

  • User is able to authenticate and boot into Windows — Pass

Outcome: SecureDoc 9.2 remains fully operational after Secure Boot CA updates.

7. Conclusion

  • SecureDoc 9.2 is not impacted by Microsoft Secure Boot certificate expiration or CA updates.

  • No action required for SecureDoc 9.2 clients.

  • SecureDoc versions prior to 9.2 remain in testing and will be updated when results become available.

Referencing:
SD-52811 & SD-52809

8. Revision History

Date

Version

Author

Description

2026-02-25

1.0

Viet Nguyen

Initial KB creation

2026-02-25

1.1

Viet Nguyen

Added screenshots, corporate formatting, and revision history