Troubleshooting steps to fix error boot error 0xc00000e9.
Windows® 10 failed to boot with error code 0xc00000e9.
Windows* error code 0xc00000e9 is a common Windows Boot Manager* error that indicates either a hardware failure or a corrupted system file encountered during the boot process. It appears shortly after the computer starts, but before the Windows login screen, as follows:
- An unexpected I/O error has occurred. Error code: 0xc00000e9
The 0xc00000e9 error code always has to do with the boot process for Windows. An I/O error, or input/output error, occurs when the system is unable to access a drive or disk, which means it cannot read or copy data. Because it's common, there are many reasons why the error might appear:
- Malfunctioning external hardware or PC components
- Damaged I/O ports
- Incorrectly seated components such as a disconnected hard drive that doesn't make contact with the motherboard
- Improperly configured UEFI, BIOS, or CMOS settings
- Corrupt system files or Windows Registry problems
- Problems with Windows Update
- A boot sector virus or other malware
There are several troubleshooting steps to fix this issue, including:
- Boot into safe mode and scan Windows for errors.
- Perform a Windows Startup Repair.
- Scan the PC for malware or other issues.
You could also contact Microsoft Support team for more guide, or try to re-install Windows® 10, following the steps below:
| Note |
Be sure to back up all the information on your computer before reinstalling. |
- Go to the Download Windows® 10 page.
- Click Download tool now.
- Once the download for the tool completes, click to expand Using the tool to create installation media (USB flash drive, DVD, or ISO file) to install Windows® 10 on a different PC and follow the instructions given.
If all the steps above do not solve the issue, try some swap tests with motherboard or other hardware.