Table 1-1 The Six-Step CompTIA A+ Troubleshooting Methodology

The Six-Step CompTIA

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Side ASide B
Step 1 
Description Identify the problem.
Step 2 
Description Establish a theory of probable cause (question the obvious).
Step 3 
Description Test the theory to determine the cause.  
Step 4
Description Establish a plan of action to resolve the problem and implement the solution.
Step 5 
Description Verify full system functionality and, if applicable, implement preventative measures.
Step 6 
Description Document findings, actions, and outcomes.  

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