Basic Computer Troubleshooting
Use a safe, structured process to diagnose common computer problems.
Symptom–cause–action examples
| Symptom | Possible cause | Safe initial action |
|---|---|---|
| Will not start | Power or connection problem | Check socket, cable and power switch. |
| Slow system | Heavy workload or insufficient resources | Review running processes and utilisation. |
| Full storage | Large, duplicate or temporary files | Review storage usage before deleting anything. |
| Overheating | Blocked airflow or sustained load | Stop demanding work and inspect ventilation. |
| No network | Router, adapter or configuration issue | Check connection status and test another service. |
Safety boundary: Stop when a repair involves mains electricity, a swollen battery, liquid damage, burning smell or unfamiliar disassembly.