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CompTIA A+ Core 2 220-1202 · Domain 3: Software troubleshooting

Using Event Viewer, Reliability Monitor, Task Manager and Safe Mode / Windows Recovery Environment to find root causes

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Last reviewed September 30, 2026 · Leer en español

Guessing wastes time. Windows records a great deal about what goes wrong, and a handful of built-in tools let you trace a symptom back to its root cause instead of treating it again and again. Each tool answers a different question, so the skill the exam tests is choosing the right one for the situation: what is happening now, what was logged, what changed, and what to do when Windows will not start normally.

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