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.This package provides the BIOS update for Dell Inspiron 5721 running the following Operating Systems: Windows and DOS.
To view all drivers for your Inspiron 17R 5721, go to Drivers and downloads.
Recommended
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5721A08.exe | 4.48 MBEnter 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:
5721A08.exe
File Size:
4.48 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:
d946dc097ab635e7be2d4f16898e1799
SHA1:
e4df8422bf6342045e5d25867cf9400220fb270f
SHA-256:
ee3ad18997acfee336d1d9e1eed540949c5971b985887187e90a00c8370d9345
Sign in to Windows as an admin to use automatic scan. If your're already signed in as an admin and seeing this message, please reboot.
Your system is managed by your IT admin and features might be limited.
Find more updates. Use SupportAssist to find all the latest driver updates for your device.
Fixes & Enhancements
Fixes
- Not Applicable
Enhancements
- Enhanced ROM based Diagnostic tool
Read More
- Not Applicable
Enhancements
- Enhanced ROM based Diagnostic tool
Version
A08
Release date
28 Jun 2013
Download Type
System BIOS
Category
BIOS
Importance
RecommendedDell 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.
Supported Operating Systems
BIOS
Looking for a different OS? View the list of Dell supported operating systems
Applies to
Dell Inspiron 5521/5721/3521/3721 and Vostro 2521
Installation instructions
BIOS Update Executable for Windows/DOS
Download
1. Click Download File to download the file.
2. When the File Download window appears, click Save to save the file to your hard drive.
Run the BIOS update utility from Windows environment
1. Browse to the location where you downloaded the file and double-click the new file.
2. After BIOS update finished, Windows System will auto reboot to take effect.
Run the BIOS update utility from DOS environment, if Legacy Boot mode Non-Windows users
1. Copy the downloaded file to a bootable DOS USB key.
2. Power on the system, then Press F12 key and Select USB Storage Device and Boot to DOS prompt.
3. Run the file by typing copied file name where the executable is located.
4. After BIOS update finished, system will auto reboot to take effect.
Run the BIOS update utility from DOS environment, if UEFI Boot mode with Load Legacy Option disabled Non-Windows users
1. Copy the downloaded file to a bootable DOS USB key.
2. Power on the system, then go to BIOS Setup by pressing F2 and go to Boot > Boot List Option
3. Change UEFI to Legacy of Boot List Option
4. Go to Exit > Exit Save Changes and reboot system.
5. Press F12, then Select USB Storage Device and Boot to DOS prompt.
6. Run the file by typing copied file name where the executable is located.
7. After BIOS update finished, system will auto reboot.
8. Go to BIOS Setup by pressing F2 and go to Boot > Boot List Option
9. Change Legacy to UEFI Boot Option.
10. Go to Exit > Exit Save Changes and reboot system.
Reboot will be required
Download
1. Click Download File to download the file.
2. When the File Download window appears, click Save to save the file to your hard drive.
Run the BIOS update utility from Windows environment
1. Browse to the location where you downloaded the file and double-click the new file.
2. After BIOS update finished, Windows System will auto reboot to take effect.
Run the BIOS update utility from DOS environment, if Legacy Boot mode Non-Windows users
1. Copy the downloaded file to a bootable DOS USB key.
2. Power on the system, then Press F12 key and Select USB Storage Device and Boot to DOS prompt.
3. Run the file by typing copied file name where the executable is located.
4. After BIOS update finished, system will auto reboot to take effect.
Run the BIOS update utility from DOS environment, if UEFI Boot mode with Load Legacy Option disabled Non-Windows users
1. Copy the downloaded file to a bootable DOS USB key.
2. Power on the system, then go to BIOS Setup by pressing F2 and go to Boot > Boot List Option
3. Change UEFI to Legacy of Boot List Option
4. Go to Exit > Exit Save Changes and reboot system.
5. Press F12, then Select USB Storage Device and Boot to DOS prompt.
6. Run the file by typing copied file name where the executable is located.
7. After BIOS update finished, system will auto reboot.
8. Go to BIOS Setup by pressing F2 and go to Boot > Boot List Option
9. Change Legacy to UEFI Boot Option.
10. Go to Exit > Exit Save Changes and reboot system.
Reboot will be required
Need help with BIOS issues?
Find a solution in Dell's BIOS troubleshooting and usage guide.Drivers help and tutorials
For more downloads go to the Drivers and downloads.
For help on using the information on this page, please visit Driver Help and Tutorials.