How to Diagnose and Repair Boot Issues in Windows 10 Using Command Prompt

Encountering boot issues with Windows 10 can be distressing. However, Command Prompt offers a range of utilities to diagnose and repair these problems. This article aims to guide you through the necessary steps to utilize Command Prompt for resolving boot-related issues.

Understanding Key Terms

  • Boot: The process through which a computer starts up and loads the operating system.
  • Command Prompt: A command-line interpreter application available in most Windows operating systems. It allows users to run commands to perform various tasks.
  • Boot Record: Data on a storage device that instructs the computer on how to boot an operating system from that device.
  • Boot Configuration Data (BCD): A firmware-independent database for boot-time configuration data. It replaces the older boot.ini.

Why Command Prompt for Boot Issues

Command Prompt provides a hands-on and granular approach to diagnosing and repairing boot issues in Windows. By using specific commands, one can target the root of the problem more precisely than some graphical tools might allow. It's an essential tool for advanced troubleshooting and system repairs.

Diagnosing and Repairing Boot Issues: Step-by-step Guide

  1. Restart the computer and press F8 or Shift + F8 to enter the Advanced Boot Options menu.
  2. Select Troubleshoot and then Advanced options.
  3. Choose Command Prompt from the list of options.
  4. To check the integrity of system files, type the command below:

    sfc /scannow
  5. If you suspect issues with the boot record, utilize the commands below:

    bootrec /fixmbr
    bootrec /fixboot
  6. Should there be problems with the Boot Configuration Data, employ the following command:

    bootrec /rebuildbcd
  7. Once the commands are executed, close the Command Prompt and select Restart.


Boot issues can hinder the smooth operation of a Windows 10 system. Thankfully, Command Prompt, with its assortment of diagnostic and repair commands, offers a robust means to address these concerns, ensuring efficient resolution and system recovery.


These steps and commands are based on the standard features and behaviors of Windows 10. It's essential to be cautious when executing commands, as mistakes can lead to further system issues.

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