Chapter 22 Troubleshooting Theory, OSs, and Security
THE FOLLOWING COMPTIA A+ 220-902 EXAM OBJECTIVES ARE COVERED IN THIS CHAPTER:
- ✓ 4.1 Given a scenario, troubleshoot PC operating system problems with appropriate tools.
- Common symptoms: Proprietary crash screens (BSOD/pin wheel), Failure to boot, Improper shutdown, Spontaneous shutdown/restart, Device fails to start/detected, Missing dll message, Services fail to start, Compatibility error, Slow system performance, Boots to safe mode, File fails to open, Missing NTLDR, Missing Boot Configuration Data, Missing operating system, Missing graphical interface, Missing GRUB/LILO, Kernel panic, Graphical interface fails to load, Multiple monitor misalignment/orientation
- Tools: BIOS/UEFI, SFC, ...
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