3.4+Boot+Sequences

Section 3-4 Boot Sequences toc include component="pageList" hideInternal="true" homeAtTop="on" limit="50"

SubSection 3-4 Boot Sequences Explain basics of boot sequences, methods,and startup utilities.

=Disk boot order/ device priority= [] >> bootable, BIOS will attempt to boot from the second device listed, and so on
 * Disk boot order describes the order of devices listed in BIOS(Basic Input Output System) that the computer will look for operating system information on
 * After the POST, BIOS will attempt to boot from the first device listed in the boot order. If that device is not [[image:http://www.pchell.com/images/bootdevicepriority.jpg align="right" caption="Device Priority Screen"]]
 * the device priority list is like your todo list, what is most important would be done or looked at first
 * Device priority can be set within BIOS, you can assign to which device the system boots to first

Boot devices

 * drive that the computer uses to load an operating system during the boot process
 * a boot device can be many types of drives:
 * internal hard disk
 * CD or DVD drive
 * USB(external HDD or optical drives)

[|Boot options]

 * to view the boot menu press F8 during startup
 * there are several options during start up, commonly used for troubleshooting issues:
 * Safe Mode
 * boots the computer with a minimum configuration such as mouse,keyboard, and standard VGA devices. Used to solve problems with a new hardware installation or problems caused by user setings
 * Safe Mode with Networking
 * boots computer with minimum configuration plus networking devices and drivers. Used to solve problems when the new installation or driver files are stored on the network [[image:http://uploads.askapache.com/2007/08/boot-menu-1.jpg width="500" height="360" align="right" caption="Windows Boot Menu"]]
 * Safe Mode with Command Prompt
 * boots to the command prompt. used for when safe mode doesn't load the OS. then you use MS-DOS-based utilities to troubleshoot and resolve startup problems
 * Last Known Good Configuration
 * uses the boot settings stored in the registry from the last successful boot. this way any system changes are reversed.
 * Start Windows Normally
 * boots computers as if you didn't enter the advanced boot menu.

Recovery options/ Recovery Console

 * system recovery is resetting a system to a former state or condition
 * there are three recovery options:
 * Startup Repair- automagically fixes problems that are preventing Windows from starting
 * System Restore- restores Windows to an earlier point in time
 * Windows Complete PC Restore- restore your entire computer from a backup
 * You can also use the Command Prompt to perform recovery-related operations via command line or Windows Diagnostic Tool to scan your computer for memory issues

=Automated System Recovery (ASR)= Video on ASR =Emergency Repair Disk (ERD)= > configuration ,changing hardware, or installing new operating system updates- you should update your ERD
 * you can use ASR to recover from a system failure caused by problems with the system/boot volume,such as Registry corruption
 * ASR differs in Vista and XP
 * in XP ASR is a component of Windows Backup (NTBACKUP)
 * in Vista Business, Enterprise, and Ultimate ASR uses the Volume Shadow Copy Service (VSS) and an ASR writer
 * ASR isn't available on Vista Home or Vista Home Premium
 * ASR should be used as your last resort to recover a system, after you'ved tried other recovery options
 * ASR formats your system and boot volumes and doesn't restore user data
 * an ERD contains basic system configuration files that you can use to restore your computer to a bootable state if your Registry is damaged or if the operating system is on an NTFS partition that isn't booting
 * when you create an ERD basic system info is placed on the disk and in the %systemroot%\Repair folder on the hard disk
 * an ERD isn't bootable, it's used with the Windows installation CD-ROM
 * it allows you to restore critical system filesand info from the registry
 * ERD can help you:
 * inspect and repair a boot sector
 * inspect and repair the start up environment
 * verify Windows 2000 Professional system files and replace missing or damaged files [[image:http://studynotes.net/images/sback.gif align="right" caption="Windows 2000 Professional Backup"]]
 * Whenever you make changes to your computer such as: installing new software,changing software,changing network
 * ERD is available in Windows 2000 Professional Backup
 * does not include Registry information