Windows 10 An unexpected I/O error has occurred in BIOS screen

Hello,

I am getting this error message which briefly flashes the Windows loading screen. I have been able to confirm through the Windows RE Command Line and the dir command that the C: drive is accessible and likely is just suffering a bootup issue.

0xc00000e9-windows-error

I have tried:

  • Launching the repair process discussed in the error message three times, however each time it requires a restart and then returns to the same error message.
  • Changing the boot order to be hard drive first
  • Getting into safe mode: safe mode results in same error message
  • I have checked to make sure the BCD (bcdedit, Boot Configuration Data) is still intact

I plan to try (but would like additional comments on):

  • sfc /scannow; requires a restart and thus will likely result in the error message again
  • A memory scan
  • Swapping IDE cables/ports
  • Resetting the BIOS

I noticed others with similar issues around the web are dual-booting however, this machine is not setup in a dual-boot environment. Additionally, at one point this error message supposedly showed up before I started working on the computer

The instruction at 0xfbe2584d referenced memory at 0x00000008. The memory could not be read.

As previously stated, any additional suggestions or words of advice would be greatly appreciated.

1 Like

Hi,

This error message: An unexpected I/O error has occurred. Status: ( 0Xc00000e9 ) is a hardware error pertaining to your system’s BIOS. Basically it is telling you that the computer is not able to reliably communicate with the hard drive.

Method 1:
Step 1:
I would suggest you to run the Automatic Repair Tool from Windows Recovery and check.

a) Boot from the disk, Once you get the welcome screen of installation with the option “Install now”
b) Click on Repair your computer
c) On the next page click on Advanced Options
d) Now click on Troubleshoot
e) Lastly click on Automatic repair and follow the on screen instructions.

Step 2: I would suggest you to run sfc/scan and check.

The sfc /scannow command scans all protected system files and replaces incorrect versions with correct Microsoft versions. When the scan is complete, the System File Checker tool indicates whether integrity violations were found. If integrity violations are found, the System File Checker tool lets you fix the integrity violations.

Use the System File Checker tool to repair missing or corrupted system files

Use the System File Checker tool to repair missing or corrupted system files - Microsoft Support

Method 2: I would suggest you to rebuilt BCD. To do this, follow these steps:

To run the Bootrec.exe tool, you must start Windows RE. To do this, follow these steps:

a) Boot from the disk, Once you get the welcome screen of installation with the option “Install now”
b) Click on Repair your computer
c) On the next page click on Advanced Options
c. Click on Troubleshoot and then select Advanced Options .
d. Click on Command prompt and type the following commands and press Enter after each command:

Bootrec /fixmbr
Bootrec /fixboot
Bootrec /rebuildbcd

e. Restart the computer.

1 Like

Hello @Carson
I hope this link would help you to solve your problem.
http://www.errorlive.com/error-code-0xc00000e9

You appear to be encountering an error message during Windows startup and have tried several troubleshooting steps. Let’s try additional solutions to address the issue:

Optimize Virtual Memory:

Virtual memory (pagefile.sys) helps manage memory demands. Adjust it to resolve the error potentially.

  • Press Win + E to open File Explorer.
  • Right-click on This PC and select Properties.
  • Go to the Advanced system settings.
  • Under the Advanced tab, click Settings in the Performance section.
  • In the Virtual memory box, click Change.
  • Select the target drive and choose Custom size.
  • Enter your current available physical RAM in MB values.
  • Click OK to save the changes.

Repair Corrupted System Files:

Corrupted system files can cause this error. Run the following commands in an ## elevated Command Prompt:

  • sfc /scannow (system file checker),
  • Try dism /Online /Cleanup-Image /RestoreHealth

Scan for Malware:

Malware can affect system stability. Use reliable antivirus software to scan your system thoroughly.

Perform a Clean Boot and Reinstall the .NET Framework:

A clean boot helps identify conflicting third-party software.
Reinstall the latest version of .NET Framework from MicrosMicrosoft’sial download website.

Reset This PC:

As a last resort, consider resetting your PC to its default state.
Remember to back up important data before attempting any significant changes.

If the issue persists, consider seeking professional assistance.

Let’s explore additional troubleshooting steps for the error message “An unexpected I/O error has occurred” you are encountering during Windows startup:

1. Memory Scan:

Run a memory diagnostic test to check for any issues with your RAM. You can do this by following these steps:

  • Press Win + R, type mdsched.exe, and hit Enter.
  • Choose to restart and check for memory problems.

2. Check IDE Cables and Ports:

Ensure that the IDE cables connecting your hard drive are secure and not damaged. Also, try different IDE ports on your motherboard.

3. Reset BIOS:

Resetting the BIOS to default settings might help. To do this:

  • Restart your computer.
  • During startup, press the key (usually F2, F10, or Del) to enter BIOS settings.
  • Look for an option to reset to default settings.

4. Dual-Boot Consideration:

Although your machine isn’t set up for dual-booting, it’s worth checking if any remnants of a previous dual-boot configuration exist.

5. Check for Disk Errors:

  • Open Command Prompt as an administrator.
  • Run the following command to check your disk for errors:
    chkdsk C: /f
    
    This command scans and fixes any file system or disk-related issues.

6. Boot in Safe Mode with Networking:

  • Restart your computer.
  • When the Windows logo appear, press the Shift key at the same time.
  • Go to “Troubleshoot”> “Advanced options” >”Startup Settings. “
  • Select Safe Mode with Networking (option number 5).
  • Find out if the problem persists when the operating system is loaded in a Safe Mode.

8. Update Graphics Drivers:

  • Sometimes, the drivers of the graphics could be old or incompatible thereby causing issues during startup.
  • Drivers are the software interface between your operating systems and your computer’s hardware like the computer manufacturer or the company producing the graphics card should be checked for new drivers for download to the computer.

9. Check for Malware:

  • Run a full system scan using reliable antivirus software.
  • Malware can sometimes interfere with system files and cause startup errors.

10. System Restore:

  • If you have set up a restore point, then you may prefer to restore your system to a prior point in time using System Restore.
  • Type in “Create a restore point” in the Start menu, go to “System Restore,” and follow the steps on the screen.

Do not forget to record any modifications that you make and their effects. If none of the above mentioned steps work, it is advisable to consult an expert or search for answers for your exact PC and hardware-hardware configuration on the web. Best of luck!