How do I Fix Error 0xc00000e9?

The error code titled above is referred as an I/O error, and tends to appear when system is unable to make contact with certain components. A spoiled hardware, corrupted system files, and/or misconfigured BIOS/CMOS Settings lead to this issue. Once encountered, you may not be able to boot into your Windows operating system, and stuck on a blank screen with this error message on it. In another scenario, you may not be able to boot to Windows in a Normal mode, but through a Safe mode. In the first case, you would need to insert an installation media into your CD/DVD drive and boot through it. Technically, an operating system is booted from a storage device. If the storage device does not assist your computer by providing the required bootable files, it would end up in error code 0x00000e9.

Prior to proceeding this piece for the solution, let be advised to first Scan and Fix your system’s concealed disorders which most probably is eliciting the inconsistencies:

Below are the causes and detailed prescriptions to address this issue. Before moving, make sure your CD/DVD Drive is not inclosing any unbootable disc, and set as the most preferred in boot order, if the system is not booting with the least bit.


There could be multiple reasons due to which this error resides in your computer.

  • Your computer may have been under attack by one or more intruders (Viruses), which in result corrupts the registry data related to startup or boot in. Although, PCs nowadays are more secured under the safeguard of different well-known antivirus solutions; however, cent percent protection is not guaranteed.
  • It may also devise from a badly written program. Users recurrently install and uninstall programs, applications, system tools, and their updates. Any of these may rise up, noncomplying with the standard regulations of your system. Consequently, a conflict rises between the system and application, harming system files that are vital for running Windows properly. Similarly, latest updates of even legitimate software can hold a fatal bug within it.
  • Hard drives storing and holding our data have a limited life span. It can live more or less, depending upon its use and maintenance. A dying hard drive also refuses to boot you in. On the other hand, when we command our systems to shut down, they take a while to wind up the services/processes and saves essential configuration files. Let the system to complete this process and do not cut the power off, as this may cause in losing such important files.


Since error 0xc00000e9 occurs due to multiple reasons, there is no particular solution. You can go through following processes one by one to see which actually helps you get out of the issue:

Rescue Boot Disc

Boot your computer through an antivirus rescue boot disc, following a systematic scan to detect and remove viruses. In order to assure malware-free directories, try scanning with multiple antivirus solutions.

  • Search and download a reliable antivirus solution for the internet
  • Update the virus definitions for the antivirus program.
  • Set in the bootable rescue tool on a removable storage
  • Restart your computer and boot in using bootable rescue tool
  • Scan your PC with antivirus and wait until the process completes
  • Click to remove the detected threats

Corrupt Registry Hives

Registry hives are the physical files stored in the configuration folder. Being specific, these files are DEFAULT, SAM, SECURITY, SOFTWARE, and SYSTEM. A possible reason behind error 0xc00000e9 could be one or multiple registry hives gone corrupted. Luckily, the same configuration folder contains a backup of these files, which was created at a time of no error. Check this detailed procedure for troubleshooting corrupt registry hives to retrieve them.

Check your Hard Drive

If you are unable to resolve the issue, even after the implementation of all prescribed practices, it points out to your hard drive encompassing errors. To see whether your storage device is up to the mark or not,

  • Boot to your system via Safe mode
  • Open your Computer directory, right click your drive, and go to its Properties
  • Access Tools tab in Properties window, and click Check button under Error-checking option.
  • On next dialog box, check both options stating, Automatically fix file system errors and Scan for and attempt recovery for bad sectors
  • Click Start button to begin the scan

How to Fix Error 0xc00000e9

Please be tolerant, as this process of scanning and fixing may take some while, depending on the size and possible errors on your hard drive. If you find out that the drive is factually damaged, please replace it before any further inconveniences.

Remove Badly Written Program

If you suspect that the error occurred due to a badly written program, you need to first identify that program and then remove it. For this purpose, carry out the following steps

  • Go to Advanced Boot Manager  by pressing F8 key, while your Turn on your PC
  • Among different boot options, choose to boot in a Safe Mode
  • This will result in a boot with minimum process and services loaded
  • Go to Control Panel and click Uninstall a program under Programs category
  • Among the list of applications, pinpoint the recently installed applications after the installation of which, errors incurred. Right click such items and choose to Uninstall

Repair Your Computer

Once you have discarded the infections from your system, removed dishonored applications, and repaired registry records, you now need to recover the damaged files of your system. For this purpose, you have to boot your computer with a Windows installation disc and choose to repair your computer. Windows startup options provide several utilities for such tasks.

  • Restart your system, inserting Windows installation disc into the CD/DVD Drive
  • Boot from CD/DVD Drive (Windows installation disc) to view Advanced Recovery Options
  • Go for the first option stating Startup Repair, to repair your computer
  • Please wait, as this tool scans the system files and repairs them automatically
  • Click Finish button, when done

Use Startup Repair to Fix Error Code 0xc00000e9 System Restore

If this does not solve the problem, try to reinstate your settings via a System Restore. In this regard, you must have first created a restore point in an earlier good time. System restore route can be located in Windows startup options, and can easily be carried out by following the given instructions.

  • Go to Advance Recovery Options, while you boot from Windows installation disc
  • Go for the option stating System Restore to reverse your settings
  • The next screen lists the restore points created at different times
  • Choose a point where you want your system to be restored (preferably most recent)

Windows Re-Install

If the problem persists, go for a clean install. This would permanently remove old settings and data in your system drive, but will most probably solve your issue. Once you have re-installed Windows, you can revive your settings from a backup stored on a removable disc or drive, if any.

  • Go to Advance Recovery Options, while you boot from Windows installation disc
  • Go for the last option stating Re-install Windows, for a fresh set up
  • On the next screen, confirm the input language and click Next button
  • Please wait, while your computer copies Windows files and extracts them
  • Type a username, computer name, and proceed with Next button
  • On the next screen, choose from the Windows Updates settings
  • Select your Time Zone, set up correct time, and click Next
  • Select your computers current location on the network, and move with Next

Applying these steps would definitely help you to cope up with seeing irritating I/O error.

10 Thoughts on “How do I Fix Error 0xc00000e9?

  1. How do you solve this 0xc00000e9 error if you do not have the original disks (none were furnished with the PC purchase) and never made any backup/restore disks. The computer will not boot far enough to get into the safe mode with command prompt, and will not get to any recovery mode. If you boot under the safe mode with command prompt, it will generate a list of roughly a hundred or so files before freezing on something called Classpnp or the such. At that point it will just completely stop and eventually default back to the bootup mode, returning to the same error screen.

    This is not my PC………..I have learned in the past the value of having restore disks and original startup disks. This is a laptop of a friend of my son…………but it was bought new and did not come with any disks. The manufacturer did not make them available. I am just trying to help the boy get his computer working again. It was working fine last night and just froze……….no external devices were attached and nothing unusual was occurring. It just froze as computers do and was like this when it rebooted.

    Thanks for any advice. I have read the several hundred comments and links, but all seem to assume you have the disks, can boot in safe mode with command prompt and all the other things. What if you can never get that far.

    • On your PC you can create a Rescue Boot Disc or Recovery Drive\Disc and then put it on the faulted system.

      Rescue Boot Disc to scan for virus
      Recovery Drive\Disc to scan the Hard Drive for errors via chkdsk and repair system files by running SFC

  2. Mr Allchurch on November 13, 2014 at 1:10 pm said:

    I was doing a install of windows 7 on a old pc and I was getting the above error when first booing from the windows 7 install CD, It worked out to be a faulty CD/DVD Drive. Replaced the drive all is fine.

  3. myn pc is showing this error …but once i replug my RAM and do some thing with wires it works n pc starts…but this is persisting continuosly…after some time..please help!!

  4. Oggmeista on October 30, 2015 at 4:43 am said:

    Sorry to burst your bubble but I strongly doubt that any of the reasons yu have listed are the real cause, at least not for me

    Firstly I am almost certain this has happened as an indirect result of installing windows

    I tried installing windows from my dvd-rom and kept getting a message the windows could not be installed onto that hdd, tried deleting then refortting still the same issue, then after checking forums my suspicions were confirmed it is an issue with my 3tb hd which is configured gor GPT use not NTFS or fat32, so I dissconnected it and the other 2 hdd’s which are all SATAs.. tried the setup again and this time it started installing
    Now I rebooted the machine and windows stats up no problem, after avtivating windows I decided to reconnect my Other 3 hdd’s and then this problem started because from previous knowledge of first installing the 3gb (GPT) I know that this mode requires the bios to be set i think to UEFI so tried this and same error, ok I thought i’ll try my recovery disk and this I think might be important it points to a problem with a corrupt MBR (Master boot record) it didn’t say missing but it did show NTLDR which I have had problems with and issues in the past
    So it is not a program (new windows installation) it is not a failing HDD , and lol (i’m afraid that’s ridiculous) it is certainly not virus attack , and your making yourself look foolish by saying that, I believe the differing file formats and changing to a possibly incorrect BIOS mode has or maybe the I/O order of my hdd’s when I reconnected everything is not following what is protocol either for the computer or windows

    That in a very general sense is the problem i’m going to have to try re-installing windows hopefully will work, but I am worried that this problem will happen again

  5. James S on December 23, 2015 at 9:32 pm said:

    I have been having this issue for quite a while now. I had installed Windows 10, and for about 2 months everything was okay. Then my mouse stopped working for my laptop, and I thought it was a issue of HID Pointing Drawing Update from Windows that was not updating the driver. So I waited it out, and for about a month I did not use my computer. After that, I went back on and just started to use my keyboard to navigate around. Eventually I got sick of that and tried to fix it by resetting everything on my laptop by doing the Windows re-install. I restarted my laptop, and when it loaded up it said
    File- Boot/BCD
    Error Code: 0xc00000e9
    This Problem can happen when a removable storage device is removed while it is in use or is failing. Properly connecting any removable storage and restarting your PC may fix this problem.

    • Substison Biju on March 21, 2016 at 9:09 am said:

      same here yr but i have this prblm first when i tried to install windows 8.1pro then my pc had an error which u have written in last….

  6. Substison Biju on March 21, 2016 at 9:06 am said:

    I cant handle my pc yr its so disgustting…
    So many problems had happened …..
    and this is the disgusting one…!!!!
    plsss help me….

  7. larry deardorff on May 1, 2016 at 2:23 pm said:

    Check your boot sequence in the bios first thing. I am having the same problem. For some reason the bios keeps changing to the wrong hard drive to boot from. Hope this helps someone.

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