Do not turn off your computer or disconnect from the power source while updating the BIOS as this could harm your computer. During the update, your computer will restart and you may briefly see a black screen.

Before updating, please read the installation instructions and important information noted below.

Dell Inspiron 3451/3551 System BIOS

Restart required
This package contains the Dell system BIOS update. BIOS is a firmware that is embedded on a small memory chip on the system board. It controls the keyboard, monitor, disk drives, and other devices.
To view all drivers for your Inspiron 3551, go to Drivers and downloads.
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3451A07.EXE

File Format: CPG BIOS Executable for Windows/DOS
File Name: 3451A07.EXE
File Size: 5.37 MB
Format Description
This file format consists of a BIOS executable file. The Universal (Windows/MS DOS) format can be used to install from any Windows or MS DOS environment.
To ensure the integrity of your download, please verify the checksum value.
MD5:
fe2492988964d3b0cb1f9effa342880c
SHA1:
a977d62ea43f55d23591929811e93369903ae414
SHA-256:
6ab4e3116f1ed99799b16e387226ab1b6a62116320064a83a2805d836c5113f6

Fixes & Enhancements

- Update to the latest CPU microcode to address CVE-2017-5715, and associated Intel Reboot issue.
Read More

Version

A07, A07

Release date

12 Mar 2018

Download Type

System BIOS

Category

BIOS

Importance

Urgent
Dell Technologies highly recommends applying this important update as soon as possible. The update contains critical bug fixes and changes to improve functionality, reliability, and stability of your Dell system. It may also include security fixes and other feature enhancements.

Additional details

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A0619 Jul 2017
A0513 Oct 2015
A0220 Mar 2015
A0014 Jan 2015
Dell Inspiron 3451/3551 System BIOS
Updating the BIOS from Windows

Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If it is not enabled on your system, you can ignore this step. For information about how to disable BitLocker, see How to Enable or Disable BitLocker with TPM in Windows at support.dell.com.
Note 2: Do not turn off the power or interrupt the BIOS update process during the update.

Download and Installation
1. Click Download File, to download the file.
2. Click Save to save the file to your hard drive.
3. Browse to the location where you downloaded the file and double-click the new file.
The system restarts automatically and updates the BIOS at the system startup screen. After the BIOS update is complete, system restarts again.

Need help with BIOS issues?

Find a solution in Dell's BIOS troubleshooting and usage guide.

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