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Module 3: Resolving Boot Process Issues. Overview Understanding the Boot Process Using Advanced Boot Options Using the Boot.ini file to Change Startup.

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Presentation on theme: "Module 3: Resolving Boot Process Issues. Overview Understanding the Boot Process Using Advanced Boot Options Using the Boot.ini file to Change Startup."— Presentation transcript:

1 Module 3: Resolving Boot Process Issues

2 Overview Understanding the Boot Process Using Advanced Boot Options Using the Boot.ini file to Change Startup Behavior Using the Recovery Console to Start the Computer

3 Lesson: Understanding the Boot Process Multimedia: Examining the Microsoft Windows XP Boot Process What Are Control Sets? How the LastKnownGood Configuration Works Guidelines for Using the LastKnownGood Configuration

4 Multimedia: Examining the Microsoft Windows XP Boot Process

5 Configuration settings determine when the control sets are used For example, the LastKnownGood configuration points to the last control set that was used to successfully start the computer Configurations are stored in: HKEY_LOCAL_MACHINE\SYSTEM\SELECT For example, the LastKnownGood configuration points to the last control set that was used to successfully start the computer Configurations are stored in: HKEY_LOCAL_MACHINE\SYSTEM\SELECT What Are Control Sets? Control sets determine system settings A control set:  Includes a registry subkey that contains system information, such as the device drivers and services to load and start  Defines the dependencies among those services and devices Controls sets are stored in: HKEY_LOCAL_MACHINE\SYSTEM A control set:  Includes a registry subkey that contains system information, such as the device drivers and services to load and start  Defines the dependencies among those services and devices Controls sets are stored in: HKEY_LOCAL_MACHINE\SYSTEM

6 How the LastKnownGood Configuration Works The LastKnownGood configuration is: Automatically updated after each successful logon A safe boot option when the default configuration does not work Automatically updated after each successful logon A safe boot option when the default configuration does not work Yes No Restart Shut down Use LastKnownGood configuration Current configuration copied to LastKnownGood by way of Clone Successful boot? Yes Successful logon? Start a computer running Windows XP Professional by using Default configuration

7 Demonstration: Controlling System Settings During the Boot Process The control sets The SELECT subkey and configurations, including LastKnownGood The control sets The SELECT subkey and configurations, including LastKnownGood 1 1 2 2

8 Do not use the LastKnownGood configuration for: Hardware failures, or missing or corrupted files Guidelines for Using the LastKnownGood Configuration Use the LastKnownGood configuration when: The Windows XP Professional operating system stops responding after you install a device driver You accidentally disable a critical device driver Startup problems that are not related to configuration changes

9 Lesson: Using Advanced Boot Options Types of Advanced Boot Options Why Use Safe Mode to Start a Computer?

10 Types of Advanced Boot Options Advanced options include: Safe Mode Enable Boot Logging Enable VGA Mode LastKnownGood Configuration Debugging Mode Boot Normally Reboot Return to OS Choices Menu

11 Why Use Safe Mode to Start a Computer?

12 Practice: Using Safe Mode Boot the computer into Safe Mode and log on to the classroom domain

13 Lesson: Using the Boot.ini File to Change Startup Behavior What Is the Boot.ini File? Ways to Modify the Boot.ini File

14 What is the Boot.ini File? multi(0) rdisk(1) partition(2) 0101 0101 1212 Controllers Physical Disks Disk Partitions rdisk [boot loader] timeout=30 default=multi(0)disk(0)rdisk(1)partition(2)\WINDOWS [operating systems] multi(0)disk(0)rdisk(1)partition(2)\WINDOWS=Microsoft Windows XP SCSI(0)disk(1)rdisk(0)partition(1)\WINDOWS=Microsoft Windows 2000 [boot loader] timeout=30 default=multi(0)disk(0)rdisk(1)partition(2)\WINDOWS [operating systems] multi(0)disk(0)rdisk(1)partition(2)\WINDOWS=Microsoft Windows XP SCSI(0)disk(1)rdisk(0)partition(1)\WINDOWS=Microsoft Windows 2000

15 Ways to Modify the Boot.ini File You can modify the Boot_ini file to change: System startup settings Time-out and default settings Display names and switches

16 Practice: Modifying Display Names and Switches Manually edit the Boot.ini file to alter the Windows Display name Enable the /sos switch Manually edit the Boot.ini file to alter the Windows Display name Enable the /sos switch 1 1 2 2

17 Lesson: Using the Recovery Console to Start a Computer What Is the Recovery Console? How to Start a Computer by Using the Recovery Console

18 The Recovery Console is a feature that you can use to start a computer if Safe Mode and other startup options do not work The most common Recovery Console commands are disable, expand, copy, fixboot, and fixmbr What Is the Recovery Console?

19 To use the Recovery Console to start a computer: Start the Recovery Console from the Operating System Selection menu or from the compact disc 1 1 Enter the Administrator account’s password 3 3 Select the installation to recover 2 2 How to Start a Computer by Using the Recovery Console

20 Practice: Installing the Recovery Console Install the Recovery Console Test the Recovery Console installation Install the Recovery Console Test the Recovery Console installation 1 1 2 2

21 Lab A: Troubleshooting the Boot Sequence In this lab, you will read the scenario, identify the boot-process problem, and resolve the problem


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