Boot Failure Troubleshooting for Support Specialists

1. A system exhibits 'Blue Screen of Death' (BSOD) during startup. Which troubleshooting step comes first?

Note the error code and boot into Safe Mode

Immediately replace the motherboard

Perform a clean Windows installation

Disable all USB devices

2. A support ticket indicates the system powers on but does not reach the BIOS splash screen. Which component is most likely faulty?

Motherboard, RAM, or CPU

Hard drive or SSD

Graphics card or display

Network interface card

3. The Windows bootloader fails to load. Which command in Recovery Console rebuilds the boot configuration database?

Bootrec /rebuildbcd

Diskpart /clean

Format C: /fs:NTFS

Chkdsk C: /R

4. A system shows 'Disk Read Error' at startup. Which action should you take immediately?

Back up data and run diagnostics on the hard drive

Delete temporary files

Update the chipset drivers

Disable USB ports in BIOS

5. When troubleshooting boot failures, why is documenting error messages critical?

To create a ticket history and guide next steps

To comply with data privacy regulations

To increase billable hours

To train junior technicians

6. A ticket reports: system boots to login screen, then restarts unexpectedly. What is the likely issue?

Corrupted system files or driver conflict

Keyboard malfunction

Monitor refresh rate mismatch

Insufficient disk space

7. Which BIOS setting may prevent a system from booting if enabled without proper hardware support?

Secure Boot

Fan speed control

USB 3.0 support

Sound card detection

8. A system fails to boot after installing a new graphics card. What should you verify first?

Power supply wattage and PCIe slot compatibility

Monitor resolution settings

Graphics driver version number

HDMI cable connection

9. The bootsector on a Windows drive is corrupted. Which recovery tool repairs it?

Bootrec /fixboot

Ipconfig /renew

Netsh winsock reset

Systeminfo /s

10. When a newly installed RAM module causes boot failure, what is the best resolution?

Reseat the RAM and check compatibility

Update BIOS immediately

Replace the power supply

Reinstall Windows

11. When a system fails to boot and displays 'BOOTMGR is missing,' which file system component is most likely corrupted?

Master Boot Record (MBR)

File Allocation Table (FAT)

NTFS Journal

Partition Table

12. What is the purpose of the Windows Recovery Console or Recovery Environment?

To overclock the CPU

To repair boot issues and restore system files

To format the hard drive

To update device drivers

13. Which boot sequence setting prioritizes checking the hard drive before USB devices?

UEFI Secure Boot

Legacy BIOS boot order

AHCI mode

TPM 2.0 settings

14. A disk error appears during startup: 'SMART failure predicted on disk.' What action is most appropriate?

Ignore; SMART is often inaccurate

Back up data immediately and replace the drive

Run defragmentation

Reinstall the operating system

15. When should you use Safe Mode during boot failure troubleshooting?

To test if drivers or services are causing the issue

To perform a full system backup

To update BIOS firmware

To replace the hard drive

16. A system powers on but stops at a black screen with a cursor. What is the most likely cause?

BIOS not detecting boot device

Corrupted Windows boot files

Faulty graphics card

Disconnected monitor cable

17. Which command-line tool can repair the Master Boot Record on a Windows system?

Chkdsk /F

Bootrec /fixmbr

Sfc /scannow

Diskpart clean

18. A system shows 'No bootable device found' error. Which hardware component should you check first?

RAM modules

Boot order in BIOS/UEFI

Power supply voltage

CPU thermal paste

19. What does a continuous beeping pattern during boot typically indicate?

RAM memory failure

Hard drive sector error

Corrupted BIOS settings

Network adapter malfunction

20. A college computer fails to boot after a Windows update. Which recovery mode should you access first?

Safe Mode with Networking

Advanced Startup Options

BIOS Setup Utility

Disk Defragmentation Mode

Systems Support Specialist Resolving a Boot Failure Ticket Quiz