How to Troubleshoot Error Code 0xc00000e9 on Windows 10 Computer

Windows error code 0xc00000e9 is a common error in the Windows Boot Manager that indicates either a hardware failure or a corrupted system file during the boot process. It appears shortly after your computer boots, but before the Windows login screen appears, as shown below:

An unexpected I/O error has occurred. Error code: 0xc00000e9

What is the cause of error 0xc00000e9?

  1. The driver is outdated or incompatible
  2. The integrity of the system files is broken.
  3. Incorrect connection or disconnection of the removable disk.
  4. Constant installation, removal, and reinstallation of programs causes loss of system files.
  5. The hard disk is not working properly or there is no contact between the hard disk and the system.
  6. Viruses or malware corrupt registry files or data responsible for successfully booting the operating system.

How to repair error 0xc00000e9?

Remove any incompatible Windows updates

  1. Open WinRE and go to Troubleshooting -> Advanced Options -> Boot Options.
  2. Press F5 to select Enable Safe Mode with Networking to boot into Safe Mode with Networking.
  3. Open File Explorer. Right-click This Computer and select Properties.
  4. In the upper left corner of the pop-up window, click Control Panel – Home.
  5. Then in the window that appears, select Programs and Features.
  6. In the Uninstall Programs interface, click View Installed Updates.
  7. Right-click on the problematic update to remove it.

Update drivers.

  1. Press “Windows + X” and select Device Manager from the context menu.
  2. Expand the Hard Disk Drivers directory and right-click on each hard disk drive to select Update Driver.
  3. In the window that appears, select Automatically check for driver updates.

Launch SFC and DISM scan

  1. Enter WinRE. Enter by making two consecutive unsuccessful attempts to start Windows.
  2. Go to Troubleshooting>Advanced Options>Reference.
  3. Type “sfc /scannow” and press Enter. Then wait for the process to complete.

If SFC failed to restore system files, you can run DISM by typing the following commands in order.

  • exe /Online /CleanupImage /Scanhealth
  • exe /Online /Image Cleanup /Health Restore

Finally, you can close the prompt window when the procedure is finished and check if the error is fixed.

Frequently Asked Questions

Error code 0xc00000e9 is usually a hardware error related to BIOS settings. If you see this error, it's usually because your computer can't communicate with your hard drive. Another reason is a problem with your SSD (solid-state drive) during Windows installation.

  1. Reboot your computer.
  2. Disconnect all external devices.
  3. Check for errors in Windows.
  4. Boot into safe mode.
  5. Update your drivers.
  6. Restore Windows to boot.
  7. Scan your PC for malware.
  8. Test your hard drives.

A hard drive with bad sectors, disk errors, or file system errors can cause this error code 0xc00000e9 to appear on Windows 10 computers. You can check your hard drive for errors and fix them with Hard Drive Check.