Third-Party Full Disk Encryption Fails on Latitude 9440 2-in-1 with Secure Boot Enabled

Summary: Learn about why Full Disk Encryption by a third-party application fails on Latitude 9440 2-in-1.

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Symptoms

The third party application used for Full Disk Encryption may not be able to complete encryption of the drive. The issue is seen when Secure Boot is enabled in the BIOS.

Affected Platforms:

  • Latitude 9440 2-in-1

Cause

Microsoft UEFI CA setting under Boot Configuration in the BIOS is not enabled. This setting is disabled by default.

Resolution

Enable the Microsoft UEFI CA setting in the BIOS for the third party application to complete disk encryption successfully.

Enabling Microsoft UEFI CA setting

Affected Products

Latitude 9440 2-in-1
Article Properties
Article Number: 000221841
Article Type: Solution
Last Modified: 06 Aug 2025
Version:  4
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