Converting a Legacy BIOS System to UEFI: What You Need to Know

Converting a Legacy BIOS System to UEFI

If you have an older computer with a legacy BIOS system, you may be wondering if it's possible to upgrade to the newer UEFI (Unified Extensible Firmware Interface) system. The good news is that it is possible to convert a legacy BIOS system to UEFI, and in this article, we'll explain how to do it.

Before we get started, it's important to note that converting a legacy BIOS system to UEFI can be a complex process, and it's not always possible. If you're not comfortable with the technical details, it's probably best to seek help from a professional.

That being said, here are the steps you'll need to follow to convert a legacy BIOS system to UEFI:

Back up your data. Before making any changes to your computer's firmware, it's crucial to back up your data. This will ensure that you don't lose any important files in case something goes wrong during the conversion process. To back up data you can use an external Hard disk Drive(HDD) or Pen Drive.
Check for UEFI support. Not all legacy BIOS systems can be converted to UEFI. To check if your system is compatible, you'll need to check the motherboard's documentation or the manufacturer's website to see if it supports UEFI.
Check your operating system. In order to use UEFI, you'll need to have an operating system that supports it. This typically means that you'll need to be running a 64-bit version of Windows 7,8,10 or 11. If you're not running one of these operating systems, you'll need to upgrade before you can convert to UEFI.
Enable the UEFI boot option. In order to boot into UEFI mode, you'll need to enable the UEFI boot option in the BIOS. This can usually be done by accessing the BIOS setup utility and navigating to the "Boot" or "Advanced" tab. From there, you should be able to find the option to enable UEFI boot.
Convert the disk partition table. In order to boot into UEFI mode, your hard drive needs to be formatted with the GPT (GUID Partition Table) instead of the MBR (Master Boot Record) partition table. If your hard drive is currently using MBR, you'll need to convert it to GPT. This can be done using a utility such as the Disk Management tool in Windows
Install the UEFI bootloader. Once you've converted the disk partition table and enabled the UEFI boot option, you'll need to install the UEFI bootloader. This can usually be done by booting from a Windows installation media and selecting the "Custom" installation option. From there, you'll need to select the correct hard drive and partition, and then choose the option to install the bootloader to the UEFI partition.
Update the firmware. In order to fully convert to UEFI, you'll need to update the firmware on your motherboard. This can usually be done by downloading the latest firmware from the manufacturer's website and then using a utility such as the BIOS update tool or the UEFI firmware update utility to install it.

That's it! These are the steps you'll need to follow to convert a legacy BIOS system to UEFI. As I mentioned earlier, this can be a complex process, so if you are not comfortable with the technical details, it's best to seek help from a professional.

I hope this article was helpful. Let me know if you have any questions and below is a video to configure this process on a dell laptop.