Refer to the Dell knowledge-base article BIOS Recovery options on a Dell PC or Tablet for more information.If you have additional BIOS-related questions, click one of the appropriate articles below: How to Clear the BIOS Password Downgrading the BIOS on a Dell computer.Run the following command: You can also find your BIOS’s version number in the System Information window.On Windows 7, you can search the Start menu for System Information to find it.Note: You may install the latest version of the BIOS no matter what previous version you have installed.They do not need to be installed in order as each new version includes changes from all previous versions.
Some Dell notebook computers need to have at least 10% battery charge before you begin the BIOS update.
Normally, you'd better update your BIOS to the latest version.
If your BIOS on laptop, desktop or notebook is outdated, corrupted, or broken, you will meet lots of problems, such as: However, updating BIOS on a computer is of risk, which may bring lots of issues.
There are several ways to see your BIOS version from within Windows, and they work the same on PCs with a traditional BIOS or a newer UEFI firmware.
To use a command, open a Command Prompt window — press Windows Key R, type cmd into the Run dialog, and press Enter.
You cannot update a BIOS from directly within the OS.
It has to be done with an external drive of some sort.
It is the first software your PC loads so that it can use things like CD drives, mice, and keyboards practically from the moment you turn it on.
This guide will help you flash (update) your BIOS by taking the right precautions and walking you through each step.
Not all computers will have the same BIOS manufacturer, let alone the same exact process, but they all share similar steps and precautions.
You probably shouldn’t update your BIOS, but sometimes you need to.