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 Vostro 5459 System BIOS

Restart required
This package provides the Dell System BIOS update and is supported on Dell Vostro 5459 for Windows and DOS Operating Systems.
To view all drivers for your Vostro 5459, go to Drivers and downloads.
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5459_104.EXE

File Format: CPG BIOS Executable for Windows/DOS
File Name: 5459_104.EXE
File Size: 8.14 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:
d5def88c5e747ab0f90d2e8881083563
SHA1:
7b8ec6ef192b0b50e21c8410af386198a4889837
SHA-256:
0e1fddb456590a3f95f6917c84710bba74d112dfa038defff1f52a56a4aff3d6

Fixes & Enhancements

Fixes
- Fixed brightness level not sync with hotky in Windows 7.
- Fixed keyboard backlight timeout does not have function in Windows 7.

Enhancements
- Enhanced Fn+PrtScr hotkey behavior in Windows 7.
- Enhanced the system stability
Read More

Version

1.0.4, 1.0.4

Release date

25 Jan 2016

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

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Dell Vostro 5459
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. Windows System will auto restart and update BIOS while system startup screen.
3. After BIOS update finished, 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. DOS System will auto restart and update BIOS while system startup screen.
5. 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. DOS System will auto restart and update BIOS while system startup screen.
8. After BIOS update finished, system will auto reboot.
9. Go to BIOS Setup by pressing F2 and go to "Boot > Boot List Option".
10. Change "Legacy" to "UEFI" Boot Option.
11. Go to "Exit > Exit Save Changes" and reboot system.

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Note 1: You will need to provide a bootable DOS USB key. This executable file does not create the DOS system files.
Note 2: Please make sure you suspend BitLocker encryption before updating BIOS on a BitLocker enabled system.
If you don't enable BitLocker on your system you can ignore it.

Reboot will be required

Need help with BIOS issues?

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

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