Title: Troubleshoot PC OS problems.
Course: Cybersecurity Systems Technology, Advanced (10109-IV) > Section: Understanding Security

Troubleshooting should include the following symptoms and tools:

- Common symptoms
  - Proprietary crash screens (BSOD/pinwheel)
  - Failure to boot
  - Improper shutdown
  - Spontaneous shutdown/restart
  - Device fails to start/detected
  - Missing DLL message
  - Services fails to start
  - Compatibility error
  - Slow system performance
  - Boots to safe mode
  - File fails to open
  - Missing New Technology Loader (NTLDR)
  - Missing boot configuration data
  - Missing operating system
  - Missing graphical interface
  - Missing GR and Unified Bootloader/Linux Loader (GRUB/LILO)
  - Kernel panic
  - Graphical Interface fails to load
  - Multiple monitor misalignment/orientation

- Tools
  - BIOS/UEFI
  - SFC
  - Logs
  - System Recovery Options
  - Repair disks
  - Pre-installation environments
  - MSCONFIG
  - DEFRAG
  - REGSRV32
  - REGEDIT
  - Event viewer
  - Safe mode
  - Command prompt
  - Uninstall/reinstall/repair

Process/Skill Questions:

- Why is it important to monitor resources on a computer?
- What is the process to determine what is not working in an unexpected shutdown?
- What is the lockup feature?
- What is BIOS and POST?