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What happens first in the BIOS boot process? - Power is supplied to the CPU, which looks at a
specific memory address for a pointer to locate the BIOS program.
What does the CPU do after locating the BIOS in the BIOS boot process? - The CPU loads the
BIOS, and the first BIOS process to run is the POST.
What does POST verify first? - POST verifies the integrity of the BIOS code.
What does POST do after verifying the BIOS code? - It locates, sizes, and verifies system
memory, then initializes the video card.
What other devices does POST identify? - POST identifies available hard disks.
What does BIOS do after POST is complete? - BIOS identifies system devices and uses CMOS
settings and device data to configure hardware.
What does BIOS do regarding plug-and-play devices? - BIOS allocates system resources to plug-
and-play devices.
What information does BIOS display during POST? - BIOS displays keyboard, mouse, SATA
drive information, and system resources.
What is the final BIOS action before loading the OS? - BIOS searches for a boot drive using the
CMOS-defined boot order.
When can you enter the CMOS setup? - You can enter the CMOS setup during the BIOS
information screen display.
, What starts the boot loader stage in the BIOS system? - BIOS loads the boot code from the
Master Boot Record (MBR) of the boot device.
Where is the MBR located? - The MBR is located in the first sector of the disk.
What does MBR boot code do? - It uses the partition table to find the active partition and then
looks for bootmgr.exe.
Where does bootmgr.exe look for the BCD store? - It looks in either the C:\ directory or the
System Reserved partition.
What is the purpose of the BCD store? - It contains a list of all Windows installations on the
disk.
What does bootmgr.exe do if only one Windows installation exists? - It automatically loads that
operating system.
What does bootmgr.exe do if multiple Windows installations exist? - It displays a list of bootable
operating systems.
When does the OS startup stage begin? - It begins after bootmgr.exe loads and before the
Windows loading screen appears.
What file begins the OS startup stage? - The file winload.exe starts the OS startup.
What key can you press to access advanced startup options? - Press the F8 key (on most
computers) while winload.exe is loading.
What does winload.exe load? - It loads the system registry, ntoskrnl.exe, and essential device
drivers.