Quickly understand the startup process of Vista

        Power On - The computer system will perform a Power On Self Test (POST). If passed, BiOS will then read the Master Boot Record (MBR), the first sector of the hard drive that is marked as the boot device, and pass the control code established by Windows Vista to the MBR. - At this point, Windows takes over the boot process. Next: The MBR reads the boot sector - the first sector of the active partition. This sector contains the code to start the Windows Boot Manager program Bootmgr exe. 02. The Windows Boot Manager reads the information in the Boot Configuration Data Store. This information contains configuration information for all operating systems that have been installed on the computer and is used to generate the boot menu. When you select the following actions in the boot menu: <1> If you selected Windows Vista, the Windows Boot Manager runs the OS loader-Winload exe in the %SystemRoot%\\System32 folder. 2> If you choose to restore Windows Vista from hibernation, the boot manager will load Winresume exe and restore your previous usage environment. <3> If you selected an earlier version of Windows in the boot menu, start management It will locate the volume where the system is installed and load the Windows NT-style early OS loader (Ntldr.exe) - generate a boot menu determined by the boot.ini content. When Windows Vista starts, it loads its core file Ntoskrnl.exe and Hal.dll - read settings from the registry and Load the driver. Next you will run the Windows Session Manager (smss.exe) and start the Windows Launcher (Wininit exe), Local Security Authentication (Lsass.exe) and Services (services.exe) processes. Once you are done, you can Log in to your system.