After testing, it loads the operating system from the storage devices like hard disks. It is a set of instructions stored in ROM (Read Only Memory) that are used to check PC components. What is BIOS and Its Role?īIOS stands for Basic Input Output System. Finally, learn the step-by-step guide o how to update BIOS on a Windows 11 PC. In this post, you will learn details what is BISO and its role, what are the reasons for updating BIOS. In fact, BIOS's role is to execute primary and secondary tests before booting the on-board operating system. When your computer or laptop boots up, the first screen you see is the BIOS window. However, you should really pay attention to the BISO firmware before installation as Windows 11 has much more rigorous requirements for hardware, such as TPM 2.0 and UEFI boot. Windows 11 is currentlt the hottest desktop operating system and there are a lot of users plan to install Windows 11 on an old PC. By Petty Madison | Last Updated: Mar 28, 2022
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