How to Fix Inaccessible Boot Device Windows 11: A Step-by-Step Guide

Fixing the ‘Inaccessible Boot Device’ Error on Windows 11

Encountering the "Inaccessible Boot Device" error on Windows 11 can be frustrating, but you can resolve it with a few straightforward steps. First, restart your computer and access the BIOS settings. Then, check and adjust your boot order. Next, boot into Safe Mode and update or uninstall faulty drivers. Finally, run some built-in Windows troubleshooting tools to fix any remaining issues. Let’s dive into the detailed steps.

Steps to Fix Inaccessible Boot Device on Windows 11

Before we begin, these steps will help you boot back into your Windows 11 system without hitting the "Inaccessible Boot Device" error. By the end of this guide, your computer should boot normally.

Step 1: Restart Your Computer and Access BIOS

Power off your computer, turn it back on, and press the designated key (like F2, F12, Del, or Esc) to enter BIOS.

Restarting and entering BIOS is essential because it allows you to reorder your boot sequence and ensure your primary hard drive is set to boot first. Sometimes, this simple fix resolves the issue.

Step 2: Check and Adjust Your Boot Order

In BIOS, navigate to the Boot menu and ensure your primary hard drive is set as the first boot device. Save the changes and exit.

Setting the primary hard drive as the top priority ensures your computer is trying to boot from the correct device. If another device is listed first, it might cause the "Inaccessible Boot Device" error.

Step 3: Boot into Safe Mode

Restart your computer, hold the Shift key, and click Restart. Then, navigate through the Advanced Options to boot into Safe Mode.

Booting into Safe Mode is crucial because it starts Windows with a minimal set of drivers and services. It can help you identify and fix issues without interference from other software.

Step 4: Update or Uninstall Faulty Drivers

Once in Safe Mode, open Device Manager, find any devices with a yellow exclamation mark, and either update or uninstall their drivers.

Faulty or outdated drivers can often cause the "Inaccessible Boot Device" error. Updating or uninstalling them ensures your system is using compatible and functioning drivers.

Step 5: Run Built-in Troubleshooting Tools

Open Command Prompt as an administrator and run commands like "chkdsk /f /r" and "sfc /scannow" to check and repair disk and system file errors.

These commands are powerful tools that scan your hard drive and system files for errors and repair them. They can resolve issues that might be causing the boot error.

After completing these steps, your computer should boot normally without displaying the "Inaccessible Boot Device" error. You’ve addressed the common causes and performed necessary troubleshooting.

Tips for Fixing Inaccessible Boot Device on Windows 11

  • Keep Your Drivers Updated: Regularly update your drivers to prevent compatibility issues.
  • Use Reliable Software: Only download drivers and software from trusted sources to avoid malware.
  • Check for Windows Updates: Ensure your system is up to date with the latest Windows updates.
  • Backup Regularly: Regular backups can save you from data loss in case of boot issues.
  • Monitor Hard Drive Health: Use tools to check your hard drive’s health periodically to detect early signs of failure.

Frequently Asked Questions

What causes the "Inaccessible Boot Device" error?

This error is often caused by driver issues, incorrect BIOS settings, or corrupted system files.

Can I fix this error without technical expertise?

Yes, following straightforward steps like adjusting BIOS settings and updating drivers can resolve this error without advanced technical knowledge.

Do I need any special tools?

Most steps use built-in Windows tools; no special tools are necessary.

Will I lose my data?

Following these steps shouldn’t result in data loss, but regular backups are always recommended.

What if the error persists?

If the error persists, consider seeking professional help or performing a clean Windows installation.

Step-by-Step Summary

  1. Restart and access BIOS.
  2. Adjust boot order.
  3. Boot into Safe Mode.
  4. Update or uninstall faulty drivers.
  5. Run troubleshooting tools.


Encountering the "Inaccessible Boot Device" error on Windows 11 can be daunting, but with the right approach, it’s fixable. By adjusting your BIOS settings, booting into Safe Mode, updating drivers, and running built-in troubleshooting tools, you can resolve the issue and get your system running smoothly again.

Remember to keep your drivers updated and regularly check for Windows updates. These preventative measures can save you from future headaches. Also, regular backups are a safety net against data loss.

If you found this guide helpful, consider sharing it with others facing similar issues. For more in-depth troubleshooting, visit our additional reading section or contact a tech professional. Happy computing!