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Troubleshooting is the process of identifying, planning and resolving a problem, error or fault within a software or computer system. It enables the repair and restoration of a computer or software when it becomes faulty, unresponsive or acts in an abnormal way.
Troubleshooting is primarily done to keep a system or software in desired condition, specifically when it encounters or exhibits a problem. It is a systematic approach done within one or more phases depending on the complexity of a problem. Typically, the first step involves identifying what the problem is followed by coming up with a solution to counteract the problem and then implementing that solution. However, there can be more than one reason for the problem, which will require a more complex solution. An individual troubleshooting such a problem might test for different solutions to eliminate the problem or fault.