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 5721 System BIOS

Restart required AUTO INSTALLED This file was automatically installed as part of a recent update. If you are experiencing any issues, you can manually download and reinstall.
Dell Inspiron 5721 System BIOS
To view all drivers for your Inspiron 17R 5721, go to Drivers and downloads.
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5721A06.exe | 4.45 MB
Enter the Service Tag of your device to check the compatibility of this download with your device.
This is a large file. Depending on your connection speed, it may take some time to download.

File Format: CPG BIOS Executable for Windows/DOS
File Name: 5721A06.exe
File Size: 4.45 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:
14f729efff636ec3c9aa7783bf1fb957
SHA1:
1695c17e72d5d3bd335d6e24b56254a981112696
SHA-256:
22fbf4564eb3fbfa738e231834bd769604b736ec858caa7e7fc9827d282a5421

Find more updates. Use SupportAssist to find all the latest driver updates for your device.

Fixes & Enhancements

Adjust fan control algorithm
Read More

Version

A06

Release date

04 Mar 2013

Download Type

System BIOS

Category

BIOS

Importance

Recommended
Dell Technologies recommends applying this update during your next scheduled update cycle. The update contains changes to maintain overall system health. It ensures that the system software remains current and compatible with other system modules (firmware, BIOS, drivers, and software) and may include other new features.

Additional details

Show All | Hide All
A0915 Aug 2013
A0828 Jun 2013
A0723 May 2013
A0505 Feb 2013
Dell Inspiron 5521/5721/3521/3721 and Vostro 2521
Download the release, launch the executable and follow the installation instructions

Reboot will be required

Need help with BIOS issues?

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

Drivers help and tutorials