Windows NT Boot Process

Source: Internet
Author: User

Windows NT boot process:

1. Run power-on self-check (post)Program
2. the BIOS reads the first physical sector of the disk and loads the image to the memory. Then, the BIOS passes the execution of the Main Boot Sector to the image.
3. Load the Master Boot Record to the memory, including the disk partition table and a small number of executableCodeThen, the primary Boot Record finds the starting position of the active partition.
4. Load the Boot Sector of the active partition to the memory and execute it.
5. Load and initialize ntldr from the boot sector.
6. ntldr executes the appropriate small file system driver. The small file system driver is created in ntldr
And then read fat or NTFS.
7. ntldr reads the boot. ini file
8. When ntldr loads the selected operating system, one of the following two operations is generated:
If the NT System is selected, ntldr runs ntdetect. com
For other operating systems, ntldr loads bootsect. Dos and gives control to it. nt Process
This ends.
9. ntdetect. com search for hardware and send the hardware list to ntldr to register in HKEY_LOCAL_MACHINE/hardware.
10. ntldr load ntoskrnl. EXE, Hal. dll
11. ntldr retrieves the system space and loads the configured device driver so that it can be started at boot.
12. ntldr passes control to ntoskrnl. EXE, and the guiding process ends.

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