Computer maintenance is not about replacing parts at random. Good troubleshooting follows a method: understand the symptom, isolate the cause, test a solution and verify the result.
1. Understand components
Know processor, memory, storage, power supply and peripherals, plus common failure symptoms.
2. Install and configure systems
Operating systems, drivers, updates and user accounts are core tasks.
3. Diagnose before replacing
Start with simple checks: cables, power, temperature, storage, memory and system logs.
4. Include security
Backups, updates and password hygiene reduce data-loss risks.
5. Document interventions
Record the problem, tests, solution and outcome.
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