CompTIA 6-Step Troubleshooting Process:

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

**Source by wikipedia**

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