chapter 9basic troubleshooting techniques 9.1general troubleshooting techniques 9.1general...

Chapter 9Chapter 9 Basic Troubleshooting Basic Troubleshooting TechniquesTechniques

9.19.1 General Troubleshooting TechniquesGeneral Troubleshooting Techniques 9.29.2 Hardware TroubleshootingHardware Troubleshooting 9.39.3 Software TroubleshootingSoftware Troubleshooting

9.19.1 General Troubleshooting TechniquesGeneral Troubleshooting TechniquesMaintain a positive mindset

Do not panicUnderstand the problem firstKeep an open mind

Divide-and-conquerAsk “Why” to find the root causes of the problemBe observantApply the process of eliminationMake use of known workable componentUse diagnostic tools

9.29.2 Hardware TroubleshootingHardware TroubleshootingCheck the simple things first

Double check any recent installation

Check if the device driver of new device is properly installed

Read the documentation

9.39.3 Software TroubleshootingSoftware TroubleshootingWindows software is made of a number of small modules.

DLLs (Dynamic Link Libraries)chunks of program code that perform various functions

malfunction or crashes may occur whenone of DLLs is deleted, changed or corrupted

existing DLL file is overwritten

shared DLL is deleted when uninstalling applications

9.39.3 Software TroubleshootingSoftware TroubleshootingSolving software problems

Keep the system updateduse Window built-up “Update” feature

update drivers through web

Check for virusesinstall anti-virus software

keep virus definitions updated

scan the machine regularly

Reinstall application

Reinstall OS

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