Secure Boot Keeps Its Original State When the System is Connected to a Monitor Using the Non-TBT Dock

Summary: This article provides information about the secure boot status not changing when connected to a monitor using the non-TBT dock.

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.
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Symptoms

 

Connect a Monitor to the computer using Dock or Dongle, then press F2 to enter the BIOS. When changing the Secure Boot option to Enable or Disable, the Secure Boot option keeps its original state.

Affected Platforms:

  • Inspiron 14 Plus 7441
  • Inspiron 14 5441
  • Latitude 7455
  • Latitude 5455
  • XPS 13 9345

   

Cause

 

The system could be conflicted if we receive a reset notification while exit BIOS menu with external monitor attached and it power off internal monitor.

   

Resolution

 

Change the Secure Boot Option without connecting the external monitor.

Updating to the latest BIOS version on the computer resolves the issue. To download and install the BIOS, reference BIOS Update Guide.

 

Affected Products

Inspiron 14 5441, Inspiron 14 Plus 7441, Latitude 5455, Latitude 7455, XPS 13 9345
Article Properties
Article Number: 000245217
Article Type: Solution
Last Modified: 13 Nov 2025
Version:  3
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