powerpoint for computer service and repair

PowerPoint forPowerPoint for

Computer Service and Repair

byJoAnne Keltner

Goodheart-Willcox Publisher18604 West Creek Drive

Tinley Park, IL 60477www.g-w.com

Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational purposes only.

Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational purposes

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Chapter 15PC Troubleshooting


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Troubleshooting

Troubleshooting a PC requires a combination of the technician’s knowledge, intuition, and experience.


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Importance to the PC Technician

When troubleshooting a PC, “time is money.”

Therefore, it is important that you hone your knowledge and experience of common PC problems.

Doing so will strengthen your intuition and help you to make repairs more quickly.


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Objectives

State commonly practiced troubleshooting steps.

Identify the three stages of computer operation.

Recognize common startup problems and understand their causes.

Restart a PC in a variety of troubleshooting modes.


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Objectives

Identify the appropriate diagnostics utility to use given a specific problem.

Step through a PC’s boot sequence. Explain basic data recovery methods.


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Presentation Outline

Troubleshooting Procedures

Data Recovery Techniques

1

2

3

4

Troubleshooting and Repair Tools

Common Problems

System Maintenance5


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Troubleshooting Procedures

1


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Common Sense Practices

1. Determine the major area at fault.2. Determine what action occurred just prior

to failure or problem.

3. Write down settings before you change them.

4. Work slowly.5. Think!

Click each link for details.


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Isolating the Problem

Determine at what stage the problem is occurring.

Stage When It Occurs Most Likely Problem

First POST to turning control over to the OS.

Hardware failure.

Second OS boot up progress bar to system logon.

Corrupt operating system file or a driver.

Third First appearance of desktop.

Corrupt or incompatible drivers and files, such as a DLL.


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Review

What are the three major fault areas?

Hardware failure Software failure User-generated problems


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Review

What two lists should you make when troubleshooting a problem?

What you know is not the problem. Possible problems.


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Review

What are some resources you can check to troubleshoot a problem you have never encountered before?

Web site of the BIOS, PC, and operating system manufacturer.

Fellow technicians.


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Review

A computer tries to boot. There are two or more beeps and no video. At what stage of operation is the problem occurring?

First stage


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Review

After a user logs in, a blue screen error occurs. At what stage of operation is the problem occurring?

Third stage


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Review

The operating system progress bar appears at the bottom of the screen; however, the system never boots to the desktop, but rather stalls. At what stage of operation is the problem occurring?

Second stage


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Common Problems2


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Most Common Problems

Blue screen error. Startup problems. PC is dead. Power light on, but no

activity.

No video. System crashes or rebo

ots.

Setup error displays. Mechanical hard drive

failure.

MBR failure. Problems after a hard

ware upgrade.

Dust accumulation.Click each link for details.


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Boot Sequence Review

Windows 95/98/Me. Windows 2000/XP. Windows Vista. Linux.



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Review

What are some causes of blue screen errors?

Defective hardware. Corrupt files. System BIOS settings beyond the capability of

the hardware. Third-party software containing bad code. Bad code in the Windows operating system.


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Review

What are some things to check and do if the PC appears dead?

Check that the PC is plugged into a power source.

Check the power source for power. Swap out the power supply and test the PC.


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Review

Reseat the _____ if the power light on the PC is on but there is no activity.

CPU


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Review

If a computer shows normal activity but no video, reseat the _____ card or change it.

video adapter


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Troubleshooting and Repair Tools

3


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Windows Troubleshooting Tools

Microsoft System Information.

Dr. Watson. System Configuration

Utility.

DirectX Diagnostic Tool.

System File Checker. Windows Report Tool.

Event Viewer. Registry Editor. Remote Assistance. Problem Reports and

Solutions. Reliability and

Performance. Memory Diagnostics

Tool.Click each link for details.


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Windows Boot Options

When to use boot options. Windows 98 Boot options. Windows XP Boot options. Windows Vista Boot options.



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Repair Utilities

System Restore. Recovery Console. Windows Recovery Environment (WinRE). Automated System Recovery.



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Reinstalling the Operating System

Reinstall OS if you cannot fix the problem with troubleshooting utilities.

First, try fixing the problem with an upgrade.

If upgrade does not fix the problem, completely reinstall the operating system.


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Review

Which of the following utilities is available only in Windows Vista and allows you to view a history of problems?

A. Event ViewerB. Microsoft System InformationC. Reliability and PerformanceD. Problem Reports and Solutions


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Review

Which of the following is a text-based utility used as a last resort?

A. Automated System RecoveryB. Recovery ConsoleC. System RestoreD. Registry Editor


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Review

Which of the following automatically restores critical files that were backed up by the Windows Backup utility?

A. Automated System RecoveryB. Recovery ConsoleC. System RestoreD. Windows Recovery Environment


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Review

Which of the following creates backups of system settings and configurations?

A. Automated System RecoveryB. Recovery ConsoleC. System RestoreD. Windows Recovery Environment


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Review

When may it be appropriate to use a boot option?

System boot stalls for an unusually long time. Printer problems (as a last resort only). Video display problem. Computer shuts down or locks up for no apparent

reason. Intermittent error condition.


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Data Recovery Techniques

4


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Data Recovery with Software

Some third-party programs, such as Norton Disk Editor, can be used to recover data.

Fig. 15-17


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Data Recovery from a Failed Hard Drive

Hard drive can be sent to a business that specializes in data recovery.

Electronic circuit board can be replaced or platters can be removed and installed in another drive.

Platter removal and installation must be done in a clean room.


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Review

To recover data from a failed hard drive, the _____ can be replaced or the _____ can be removed and installed in another drive.

electronic circuit board, platters


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Review

Platter removal and installation must be done in a _____.

clean room


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System Maintenance5


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Purpose

Can help prevent future problems and improve system performance.

Some maintenance tasks can be scheduled to perform automatically.


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Common Maintenance

System backups. Disk cleanup. Disk defragmentation. Scandisk and Chkdsk. Installing patches. Installing virus protection updates. Cleaning the physical system.



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Review

What is the purpose of PC maintenance?

It can help prevent future problems and improve system performance.


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Review

Which of the following can be used to regain hard drive space?

A. ChkdskB. Disk CleanupC. ScanDiskD. Disk Defragmenter


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Review

Which of the following can be used to rearrange files on your hard drive into a continuous series of clusters?

A. ChkdskB. Disk CleanupC. ScanDiskD. Disk Defragmenter


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Review

Always _____ your system files before installing a patch.

A. back upB. clean upC. defragD. ScanDisk

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