Drivers and software – BIOS identifies the drivers and software that interact with the operating system once it’s loaded.When (and if) it locates the system, BIOS will pass control to it. Bootstrap loader – BIOS locates your operating system. Power-on self-test (POST) – BIOS tests the hardware connected to your computer and ensures there are no errors before loading the operating system.Many experts project that UEFI will replace BIOS in the near future.įAQs What are the basic functions of BIOS? It’s a newer and more advanced interface that corrects some of the BIOS’s technical shortcomings and has features that BIOS doesn’t offer. UEFI was developed in 2007, and nowadays, it’s considered standard for modern interfaces. UEFI uses the GPT that performs regular redundancy checks that minimize the chances of corruption issues. The MBR is located in the first sector of the hard disk, which increases the risk of corruption. BIOS uses the Master Boot Record (MBR), while UEFI uses the GUID Partition Table (GPT). While both UEFI and BIOS are interfaces that start the operating system and act as mediators between the operating system and firmware, they aren’t the same. As you may have noticed, most of the instructions for accessing BIOS in Windows 11 actually involve accessing UEFI, so it’s natural to wonder if the two terms are interchangeable. Many users aren’t sure whether Unified Extensible Firmware Interface (UEFI) is the same as BIOS. HOW TO ENTER BIOS ON LAPTOP PROYou should now enter BIOS for your Surface Pro device. When you see the Microsoft or Surface logo, release the Volume Up button.
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