What is UEFI and legacy boot mode?

Legacy BIOS Boot Mode and UEFI Boot Mode. Your system is equipped with UEFI BIOS, which is based on the Unified Extensible Firmware Interface (UEFI) specification. For this reason, the system can be configured to boot in Legacy BIOS Boot Mode or UEFI Boot Mode. Legacy BIOS Boot Mode is the default.

Similarly, it is asked, what is the difference between UEFI and BIOS?

BIOS uses the Master Boot Record (MBR) to save information about the hard drive data while UEFI uses the GUID partition table (GPT). The major difference between the two is that MBR uses 32-bit entries in its table which limits the total physical partitons to only 4. (More on difference between MBR and GPT).

Do I have a UEFI BIOS?

Once you have opened setupact.log, click Ctrl+F to bring up the Find box and search for an entry named Detected Boot Environment. If your PC supports and uses UEFI, the word UEFI will appear, else BIOS. (2) Alternatively, you can also open Run, type MSInfo32 and hit Enter to open System Information.

How do I know if my computer is UEFI?

  1. Press Win + R > type msinfo32 and press Enter.
  2. Look for the BIOS Mode entry.
  3. If the value listed is Legacy, then the Boot Environment is BIOS, otherwise the respective Boot Environment will be listed.