Step 1 - Identify the problem, Step 2 - Research knowledge base/Internet, if applicable, Step 3 - Establish a theory of probably cause, Step 4 - Test the theory to determine the cause, Step 5 - Establish a plan of action to resolve the problem and identify potential effects, Step 6 - Implement the solution or escalate as necessary, Step 7 - Verify full system functionality and, if applicable, implement preventive measures, Step 8 - Document findings/lessons learned,

CompTIA ITF+ Troubleshooting Methodology

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