Chapter 1
Operating Systems
Course: 220 1202 Comptia A Exam Core 2
Subject: 220 1102 Comptia A Plus Exam Core 2
Chapter: Software Troubleshooting
1. Common Symptoms
1.1 Blue Screen of Death (BSOD)
- Description: A stop error or "blue screen" occurs when the Windows operating system encounters a critical error that it cannot recover from, leading to a system crash. BSODs typically display an error code that can help diagnose the issue.
- Common Causes: Hardware failure, driver issues, corrupt system files, memory issues, or incompatible software.
- Real-Life Example: A user experiences a BSOD while installing new hardware due to a driver conflict.
1.2 Sluggish Performance
- Description: The system responds slowly to inputs and applications take longer to load.
- Common Causes: Low available memory, high CPU usage, malware, disk fragmentation, or too many background processes.
- Real-Life Example: A computer becomes sluggish due to excessive browser tabs, multiple startup applications, and insufficient RAM.