[Solved] 5 Tested Solutions to Fix Error 0xc00000e9 on Windows 10, 8.1, 8 and 7!

0xc00000e9 windows 10

Is your Windows 10 computer/Laptop is showing Error code 0xc00000e9 with a Blue Screen of Death (BSOD) screen OR along with the “An unexpected I/O error has occurred” error?

If your answer is YES then you need to deal with this issue as soon as possible, because ignorance can affect your entire computer system and make it inaccessible.

This error message can appear at any stage – while playing games, during windows startup, browsing internet, and more…

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This is not a common situation, and there are many Windows 10 users are currently encountering this bug check error code. The Error Code 0xc00000e9 also appears when you boot your Windows 10 system and prevent PC user from accessing the system. This BSoD shows that the “Windows encountered a problem communicating with a device connected to your computer” and gives two options, the first option is “Run Windows Recovery” and the second option is “Start Windows Normally”. No matter which option you will select as it leads you to the same 0xc00000e9 BSOD.

The main culprit behind this issue is still unclear, it may be triggered because of the improperly unplugged removable storage device like USB drive, external CD drive, hard drive etc. or due to the other damaged hardware devices.

If your system doesn’t have any USB or other external devices, then the error is appearing due to the faulty hard drive. The error 0xc00000e9 is very complex and hence there is very less information available on the Microsoft and other Windows system forums.

Windows operating systems rely on its system files to boot and run all installed apps and software efficiently. So, it is recommended to make sure that all the system files are in working condition.



  • Corrupted or damaged Hard Disk Drive.
  • Improperly or loss connection of hard disk wires.
  • Damaged or corrupt USB or DVD.
  • Faulty Windows updates.
  • Junk or Misconfigured or corrupt registry files.
  • Outdated System drivers.

All the above-given points are the main possible causes of 0xc00000e9 Unexpected I/O error. There are more than one causes of this error, so we need to apply several methods to resolve this error.

This blog includes all the tricks and methods to deal with the system files, HDD errors, hardware troubleshooting and more.

Apply all of them one by one and check your PC for the error after applying each of them.


Fix 1: Modify Bios Settings

I’ve listed this solution at the top because it is very effective to get rid of error code 0xc00000e9. By resetting BIOS or set it to its default configuration you can overcome from this irritating error message.

  • First of all, press reboot button and when logo screen appears then keep pressing F2, DEL or F10 Key (it depends on the system). This will open up the BIOS settings window.
  • Choose the “Load Optimal Defaults”.
  • Now, go to the PC’s HDD setting configuration present under “Advanced” section. Now, you need to reconfigure the setting to either AHCI or IDE.
  • After it, save the settings and then reboot your computer. Check for the error, it is hoped that after applying this solution properly you will never face this error.

NOTE: You should try both the options AHCI and IDE one by one. If AHCI did not work then apply IDE or IDE not work then go for AHCI.


Fix 2: Make sure that your System’s SATA Cables are connected properly

If you are using PC not laptop then you should check the older SATA cables of your PC. Make sure it is in working condition and connected properly. If you are using an older SATA cable OR connected a SATA II cable with a SATA III port and hard drive then system will never provide a sufficient data transfer rate. If this is the case then the OS gets unable to communicate properly with the connected HDD and trigger this error code. Follow the below given steps carefully;

Shut down your computer and disconnect the power cable.

Open the CPU case and find the hard drive, and the SATA port.

Now, you need to replace the OLD cable with a NEWER one.

This step is only for those users who have experience of dealing with the internal hardware connectivity scenarios.


Also Read: [Solved] How to Fix “Your PC ran into a problem and needs to restart”?


Fix 3: Use CHKDSK Command

Check disk command will help you to find out any hard disk drive errors, by running the CHKDSK command on the command prompt should fix the I/O error 0xc00000e9 in Windows 10. It is very simple to run this command, simply follow the below given steps one by one:

Step 1: first you need to open the command prompt with admin privilege. To do this, go to the start menu and search for the command prompt. After finding right click on it and select Run as administrator.

Step 2: Now, type chkdsk and hit Enter key to run this command.


Open the This PC option.

Now, right-click the Hard Disk partition you want to check for the error.

Click on the Properties and then click on Tool.

Under the Error-checking option, click on the Check

That’s all, the selected HDD partition will be checked for any types of errors.


Fix 4: Perform Startup Repair

It is necessary to check for the corrupt or damaged system files because missing system files can also cause the error 0xc00000e9 in Windows 10.

You can go with the Startup Repair feature to fix the system corruption. Startup Repair is also known as a Windows recovery tool, with the help of this you can fix certain system issues. Follow the given steps carefully.

Step 1: You need to turn your PC/Laptop on and off more than 3 times

Step 2: You will see that the Windows 10 will boot into the diagnostics mode after turning on your PC third time. Click on the Advanced Options from the recovery screen.

Step 3: Click on the Troubleshoot and then click on the Advanced options. At last click on the Startup Repair.


Fix 5: Rebuild Boot Manager

Before applying this solution, first, you need to prepare a bootable USB drive.

Visit the official Microsoft’s website and download the ISO file and create a bootable Windows 10 installation media. If you don’t know how to create a bootable Windows 10 installation media, then visit: https://support.microsoft.com/en-us/help/15088/windows-create-installation-media

After preparing the bootable USB drive, follow below given steps:

  1. Connect the USB or DVD with your system and boot up your PC.
  2. Press any key to boot the PC/Laptop from the bootable drive.
  3. Choose Language, time, currency, keyboard/input method, and press Next.
  4. Now, choose Repair your PC (NOT install Windows).
  5. After it, choose the type of OS you want to fix and click on the Next.
  6. System Recovery Option will appear, choose Command Prompt.
  7. Now, in the command prompt you need to type the below given commands one by one. Press the Enter key after each of them:

cd /d Partition:\Windows\System32 
bcdedit /enum all
bcdedit -create {bootmgr} -d “Description”
bcdedit -set {bootmgr} device partition=Partition:
bcdedit /displayorder {GUID}
bcdedit /default {GUID}
bcdedit /timeout Value


After executing all the command reboot your system.


Last Words

All the above given fixes are completely tested and easy to apply, and it is hoped that after applying them properly your system will become free from 0xc00000e9 Unexpected I/O error.

After fixing the Windows 10 0xc00000e9 Unexpected I/O error, it is suggested to scan your PC with a professional PC Error Scanner. This software is specially designed to deal with all types of hidden Windows 10 errors related to the DLL files, registry files, system drivers and more.

It will clean all the junk files from your system automatically and improve the performance of your system. It is very simple to operate this tool, simply download – install and then run this tool. It will automatically scan your entire system and fix all types of issues within a minute.


[Solved] 5 Tested Solutions to Fix Error 0xc00000e9 on Windows 10, 8.1, 8 and 7!
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[Solved] 5 Tested Solutions to Fix Error 0xc00000e9 on Windows 10, 8.1, 8 and 7!
Want to deal with the Error 0xc00000e9 on Windows 10, 8.1, 8 and 7. Simply follow the given solutions one by one and make your PC/Laptop error-free. Fix 1: Modify Bios Settings, Fix 2: Check SATA Cables, Fix 3: Use CHKDSK Command, Fix 4: Perform Startup Repair, Fix 5: Rebuild Boot Manager
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