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- Hello and welcome to Lesson 25.

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In this lesson,

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we'll discuss how to
troubleshoot computer problems.

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We'll begin this lesson by
describing the CompTIA A+

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six-step troubleshooting methodology.

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Then we'll show how to prevent
electrostatic discharge.

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After that, we'll focus on a variety

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of troubleshooting tools that
you'll be using in the field,

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including the PSU tester,
multimeter, and loopback plug.

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Get ready, this is what it's all about

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to be a computer technician,

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troubleshooting computer
and networking problems.

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Let's begin.