A+ Certification/Exam Objectives/Windows 7
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WINDOWS VISTA / 7 BOOT PROCESS
- BIOS runs POST.
- Computer finds the boot device and loads Master Boot Record (MBR) into RAM.
- MBR looks for the active partition on the boot device and loads the boot sector.
- The boot sector in turn starts the bootmgr file, which loads the operating system.
- bootmgr configures the computer’s processor to recognize all of the memory.
- bootmgr starts the file system and the operating system loads. Windows Vista/7 must be NTFS.
- bootmgr checks the BCD and bootsect.bak files to find the operating system(s) and to create the boot menu.
- After the operating system is selected, bootmgr makes the hardware list.
- bootmgr loads Ntoskrnl.exe, which is the kernel of the operating system.
- The operating system starts the graphical user interface.
- Ntoskrnl.exe loads Smss.exe, which is the Session Manager.
- The user logs on.