Troubleshooting is the process of identifying and resolving problems with a system, device, or service. It involves systematically diagnosing and isolating issues in order to find the root cause of a problem. Troubleshooting typically requires analyzing data, researching solutions, and testing potential fixes to determine the best solution. The process may also involve contacting support personnel or vendors for additional assistance. Troubleshooting can be time-consuming, but is often necessary to ensure that systems are operating properly and efficiently.