The windows boot configuration data file does not contain a valid os entry

Get the fix to the 0xc0000098: The Windows Boot Configuration Data file does not contain a valid OS entry boot error message affecting Windows Vista, Windows 7, Windows 8, Windows 8.1 and Windows 10.

About the “0xc0000098” error

The following information on this error has been compiled by NeoSmart Technologies, based on the information gathered and reported by our global network of engineers, developers, and technicians or partner organizations.

Description and Symptoms

The error messages, alerts, warnings, and symptoms below are tied to this error.

Symptom 1: 0xc0000098 error screen on startup

As a part of the system startup procedure, the BOOTMGR bootloader introduced in Windows Vista and subsequently used in Windows 7, Windows 8(.1), and Windows 10 uses a database of entries and configuration options known as the BCD¹, which acts as a global store for all boot-related options and settings on newer Windows PCs. However, if the BCD file has no operating system entries, then the following error message will appear:

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Windows failed to start. A recent hardware or software change might be the
cause. To fix the problem:

  1. Insert your Windows installation disc and restart your computer.
  2. Choose your language settings, and then click "Next."
  3. Click "Repair your computer."
  
If you do not have this disc, contact your system administrator or computer
manufacturer for assistance.

  File: \Boot\BCD
  
  Status: 0xc0000098
  
  Info: The Windows Boot Configuration Data file does not contain a valid
        OS entry.

On newer Windows systems, the error screen looks a little different:

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Recovery

Your PC/Device needs to be repaired

The Boot Configuration Data file doesn't contain valid information for an operating system.

File: \Boot\BCD
Error code: 0xc0000098

You'll need to use recovery tools. If you don't have any installation media(like a disc or USB device), contact your PC administrator or PC/Device manufacturer.

A device driver that’s incompatible with your Windows system can cause this error too. In this kind of example, the error text can mention a specific file at the File row:

Windows failed to start. A recent hardware or software change might be the
cause. To fix the problem:

  1. Insert your Windows installation disc and restart your computer.
  2. Choose your language settings, and then click "Next."
  3. Click "Repair your computer."
  
If you do not have this disc, contact your system administrator or computer
manufacturer for assistance.

  File: \Windows\System32\Drivers\aswVmm.sys
  
  Status: 0xc0000098
  
  Info: Windows failed to load because a critical system driver
        is missing, or corrupt.

Causes of this Error

This error has been known to occur as a result of one or more of the following:

Cause 1: BCD has no OS entries

One of the most common causes of this error is the BCD that has no entries in it. That could happen because of disk write errors, power outages, boot sector viruses, or errors made while configuring the BCD manually.

Cause 2: An incompatible hard drive driver is installed

Another possible cause of this error is a device driver that is incompatible with the current hard drive. That could occur after a system update, or a service pack installation.

Fixing “0xc0000098” on Windows

Windows Setup CD/DVD Required!
Some of the solutions below require the use of the Microsoft Windows setup CD or DVD. If your PC did not come with a Windows installation disc or if you no longer have your Windows setup media, you can use Easy Recovery Essentials for Windows instead. EasyRE will automatically find and fix many problems, and can also be used to solve this problem with the directions below.

Fix #1: Rebuild BCD via Easy Recovery Essentials

Easy Recovery Essentials’ one-click automated system repair feature incorporates full repair and reconstruction of the BCD to resolve the “0xc0000098” error, even in cases where Windows won’t boot as a result of the error.

Easy Recovery Essentials is guaranteed to fix the “0xc0000098” error automatically using its built-in Automated Repair option. EasyRE is currently available for Windows XP, Vista, 7, 8, Windows 10, and Windows 11 and can be downloaded and created on any PC.

1. Download Easy Recovery Essentials. Make sure to note your Windows version (XP, Vista, 7, 8, 10, or Windows 11) before you download EasyRE. This guide can help you identify what version of Windows you have installed.
2. Burn the image. Follow these instructions on how to burn the bootable ISO image very carefully, as making a bootable CD can be tricky! Alternatively, these instructions explain how to create a bootable EasyRE recovery USB stick/drive.
3. Boot up your PC from the Easy Recovery Essentials CD or USB you created.
4. Once EasyRE is running, choose the “Automated Repair” option and click Continue.

   

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   Choose “Automated Repair” in Easy Recovery Essentials

5. After EasyRE scans your computer’s drives, identify and select the drive letter for your Windows installation from the list, and then click on the Automated Repair button to begin.

   

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   Choose the drive associated with the Windows installation you’re trying to repair.

6. Easy Recovery Essentials will start analyzing the selected drive for problems. EasyRE will test for and attempt to automatically correct errors with the disk, partition, bootsector, filesystem, bootloader, and registry. No intervention is required, as EasyRE’s repair is fully automated:

   

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   Easy Recovery Essentials searches for errors and makes corrections to the selected Windows installation.

7. Once the process is complete, EasyRE will report its findings. Click on the Restart button to reboot your PC and test the changes.
8. The “0xc0000098” error should now be fixed as your PC begins to load:
   

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You can download Easy Recovery Essentials from here.

Fix #2: Run Startup Repair

On Windows Vista, Windows 7, Windows 8 and Windows 8.1, Startup Repair can be used to scan the system for damaged or missing system files to replace the BCD file if it has no entries.

Windows Setup CD/DVD Required!
Some of the solutions below require the use of the Microsoft Windows setup CD or DVD. If your PC did not come with a Windows installation disc or if you no longer have your Windows setup media, you can use Easy Recovery Essentials for Windows instead. EasyRE will automatically find and fix many problems, and can also be used to solve this problem with the directions below.

Startup Repair is an automated diagnosis and repair tool that is available from the Windows setup disc and can be used to find and repair some common problems. More information about how Startup Repair operates and what it does can be found in our knowledgebase. The following steps will initiate Startup Repair from the Windows setup disc:

Unable to boot into the Windows setup CD?
See our guide on setting up a PC to boot from the CD or DVD for troubleshooting and more detailed instructions.

1. Insert your Windows installation DVD into your PC’s CD-ROM drive,
2. Fully power down your PC, and make sure it has fully shut off,
3. Power up your PC,
4. Press any key when you see “Press any key to boot from CD or DVD..”
5. Click the link titled “Repair your computer” in the bottom-lefthand corner, after first selecting your language and keyboard options.
6. Wait for Startup Repair to scan your PC for Windows installations, then select your install from the list it shows:
7. Choose “Startup Repair” from the list of available recovery options to begin:
8. Startup Repair will begin scanning your installation for known issues and will attempt a repair, if possible.

Here is an example of what the PC’s startup repair should look like once the BCD file is properly restored:

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Empty BCD file restored by Startup Repair

Fix #3: Rebuild the BCD manually

Since the boot error is often caused by an empty BCD file, rebuilding it is often a good solution.

Here are the steps to rebuild the BCD:

1. Boot from the Windows install disc
2. Click on Repair your computer after selecting proper language, time and keyboard input.
3. Select the Windows installation drive, which is usually C:\, and click Next
4. Choose Command Prompt when the System Recovery Options box appears
5. Write the following command and press Enter afterwards:

   bootrec /rebuildbcd

6. If the program finds a Windows installation and asks whether it should add it to the boot list, press Y

Here is an example screenshot of what the PC’s console output should look like once Bootrec is done rebuilding the BCD.

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Bootrec utility results screen

Fix #4: Run sfc utility

On Windows Vista and Windows 7, it is possible to use the built-in Windows SFC(system file checker) tool to automatically scan a computer’s system files and repair them if necessary.

Here are the steps to run SFC:

1. Boot from your Windows install disc
2. Click on Repair your computer after selecting proper language, time and keyboard input.
3. Select the Windows installation drive, which is usually C:\, and click Next
4. Choose Command Prompt when the System Recovery Options box appears
5. Write the following command and press Enter afterwards:

   sfc /scannow /offbootdir=D:\ /offwindir=D:\Windows\

   Replace D: with the letter of the driver where Windows is installed, and D:\Windows with the Windows folder location.

Here is an example of what the PC’s console output should look like once the sfc.exe scan is complete and missing files are successfully restored:

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System files restored by the SFC utility

Fix #5: Check your disk with CHKDSK utility

If the hard drive has its file integrity compromised, it is possible to use built-in Windows CHKDSK utility to scan the disk and fix the file system errors.

Here are the steps to run CHKDSK:

1. Boot from your Windows install disc
2. Click on Repair your computer after selecting proper language, time and keyboard input.
3. Select the Windows installation drive, which is usually C:\, and click Next
4. Choose Command Prompt when the System Recovery Options box appears
5. Write the following command and press Enter afterwards:

   chkdsk C: /f

   Replace C: with the letter of the driver where Windows is installed.

Here is an example of what the PC’s console output should look like once the chkdsk.exe is complete:

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Chkdsk utility results screen

More Information

Linked Entries

• bootcfg
• bootrec
• chkdsk
• sfc
• Fix MBR

Support Links

• Easy Recovery Essentials for Windows – our repair and recovery disk.

  It’s an easy-to-use and automated diagnostics disk. It’s available for Windows 8, Windows 7 and Windows Vista. It’s also available for Windows XP and Windows Server.

  Read more at Windows Recovery Disks.

• The NeoSmart Support Forums, member-to-member technical support and troubleshooting.
• Get a discounted price on replacement setup and installation discs: Windows Vista, Windows 7, Windows 8, Windows 10.

Applicable Systems

This Windows-related knowledgebase article applies to the following operating systems:

• Windows Vista (all editions)
• Windows 7 (all editions)
• Windows 8 (all editions)
• Windows 8.1 (all editions)
• Windows 10 (all editions)

Propose an edit

1. BCD is an abbreviation of Boot Configuration Database. ↩

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All the latest versions of windows operating system comes with boot configuration options
which contains operating system entries. If the operating system entries goes missing for some reason then this error will appear.

‘‘ The Windows Boot Configuration data file does not contain a valid OS entry »

What happens during this error is that it prevents your computer from booting. Most often this issue is caused due to the corruption of BCD registry. Although this error looks complex, it comes with several solutions in which one of them might surely work for you. 

In this article, I will be covering about Fixing The Windows Boot Configuration Data File does not Contain a Valid OS Entry. From this post, you will learn how to eliminate this error from the scratch.

Let’s get started,

1. Perform Startup Repair

Windows operating system comes with a recovery tool known as the Startup repair which repairs corrupted system files. Meaning if the BCD files face issues with OS entries, startup repair essentially replaces files with new ones. 

To perform Startup repair,

2. Run SFC Scan

Another method to repair the system files is using SFC scan. System File Checker (SFC) scans the computer for corrupted system files. And if possible it repairs them too. 

To run SFC Scan,

3. Run CHKDSK

Sometimes the hard disk drive on which the operating system is installed could face problems such as file system errors and bad sectors. Running Check Disk Utility (CHKDSK) not only fixes disk errors, it also repairs BCD files. Hence, in order to fix this you need to run CHKDSK.

To run CHKDSK,

                    bootrec.exe /Fixmbr

                    bootrec.exe /Fixboot

Once typed restart the PC.

5. Restore PC

If the above mentioned solutions does not work, as a last resort you can try restoring the PC. Restoring the PC reverts your computer to a working state so that all of the computer problems including the boot configuration data file does not contain a valid OS entry is fixed.

To Restore System,