Fix Bootmgr Missing Error Windows 10 Solutions

Having trouble with a Bootmgr Missing error on your Windows 10 computer? Here are some solutions to help you fix the problem and get your system up and running again.

Check your BIOS settings to ensure that the correct boot device is selected.

Introduction to BOOTMGR

BOOTMGR (Windows Boot Manager) is a vital component of the Windows operating system responsible for loading the OS. If you are encountering a “BOOTMGR is missing” error on Windows 10, there are several solutions you can try to resolve the issue.

One of the first things you can do is to check if there are any USB flash drives or CDs/DVDs inserted in your computer. Sometimes, the system might be trying to boot from an external device rather than the internal hard drive, leading to the error message.

If there are no external boot devices connected, you can try using the Windows installation disc or a bootable USB drive to access the Windows Recovery Environment. From there, you can use the “Startup Repair” option to fix any issues with the BOOTMGR.

Another solution is to use the Command Prompt in the Windows Recovery Environment to rebuild the BOOTMGR and the Boot Configuration Data (BCD) store. This can be done using the bootrec /rebuildbcd command.

If none of the above solutions work, you may need to consider checking the hard drive for any errors using the chkdsk command in the Command Prompt.

Common BOOTMGR Error Messages

    Use Windows Recovery Options

    • Insert the Windows installation disc or USB drive and boot from it
    • Select “Repair your computer” from the installation screen
    • Choose the operating system to repair and open the Command Prompt
    • Type bootrec /rebuildbcd and press Enter
    • Restart your computer and check if the issue is resolved

    Use Automatic Repair

    • Insert the Windows installation disc or USB drive and boot from it
    • Select “Repair your computer” from the installation screen
    • Choose the operating system to repair and select “Startup Repair”
    • Follow the on-screen instructions to complete the repair process

    Use System File Checker (SFC)

    • Open Command Prompt as an administrator
    • Type sfc /scannow and press Enter
    • Wait for the scanning and repairing process to complete
    • Restart your computer and check if the issue is resolved

    Check for Hard Drive Errors

    • Open Command Prompt as an administrator
    • Type chkdsk /f /r and press Enter
    • Wait for the disk check to complete and fix any errors found
    • Restart your computer and check if the issue is resolved
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Initial Troubleshooting: Restart and Unplug Devices

Initial Troubleshooting: If you encounter the “Bootmgr Missing” error on your Windows 10 computer, the first step is to restart and unplug your devices. Start by restarting your computer to see if the error resolves itself. If the error persists, unplug all external devices such as USB flash drives, external hard drives, and printers. After unplugging the devices, restart your computer again to see if the error is resolved.

If the error persists after restarting and unplugging devices, you may need to proceed with further troubleshooting steps to fix the “Bootmgr Missing” error on Windows 10. This initial troubleshooting step can help to rule out any potential device conflicts that may be causing the error.

Adjust BIOS Boot Order

To adjust the BIOS boot order in order to fix the Bootmgr missing error on Windows 10, you will need to access the BIOS settings on your computer. Start by restarting your computer and pressing the key specified by your computer’s manufacturer to enter the BIOS. This is typically the F2, F10, or Del key.

Once in the BIOS, navigate to the “Boot” or “Boot Order” section using the arrow keys. Here, you can change the order in which your computer looks for a boot device. Set your primary boot device to the drive where your Windows operating system is installed.

After making the necessary changes, save the settings and exit the BIOS. Your computer will now restart and attempt to boot from the new boot order you specified. If the Bootmgr missing error was caused by an incorrect boot order, this should resolve the issue.

Utilize Windows Recovery Environment

To fix the Bootmgr missing error in Windows 10, you can utilize the Windows Recovery Environment. First, you’ll need to access the Windows Recovery Environment by inserting your Windows installation media or recovery drive, and then booting from it. Once in the Recovery Environment, select your language and keyboard input method, then choose “Troubleshoot” and “Advanced options.”

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Next, select “Command Prompt” to open the command line interface. Here, you can use the following commands to fix the Bootmgr missing error:
bootrec /fixmbr
bootrec /fixboot
bootrec /rebuildbcd

After running these commands, restart your computer and see if the Bootmgr missing error has been resolved. If not, you may need to use other advanced troubleshooting options in the Windows Recovery Environment or seek further assistance.

Rebuild Boot Configuration Data

1. First, insert the Windows installation DVD or USB flash drive into your computer and restart it.

2. Boot from the installation media by pressing any key when prompted.

3. On the initial Windows Setup screen, select your language, time and currency format, and keyboard or input method. Then click “Next.”

4. Click on “Repair your computer” at the bottom left corner of the screen.

5. Select “Troubleshoot” from the options, then choose “Command Prompt.”

6. In the Command Prompt window, type the following command and press Enter: bootrec /rebuildbcd

7. Follow the on-screen instructions to complete the process.

8. Once the process is complete, restart your computer and remove the installation media.

Advanced Solutions: System Restore and Hard Drive Tests

If you’re still experiencing the “Bootmgr Missing” error after trying the basic solutions, you may need to try more advanced options. One of the first things to try is a System Restore. This will allow you to revert your system back to a previous state, which can often fix the issue.

To access System Restore, you’ll need to boot from a Windows installation or recovery disk. Once you’re in the recovery environment, navigate to the System Restore option and follow the on-screen instructions to choose a restore point and initiate the process.

Another useful tool for diagnosing and fixing issues with your hard drive is the built-in Hard Drive Tests. These tests can identify and repair errors on your disk that may be causing the “Bootmgr Missing” error.

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To run a hard drive test, boot from a Windows installation or recovery disk, then navigate to the Advanced Options and select the option for hard drive testing. Follow the on-screen instructions to initiate the test and allow it to complete.

By using these advanced solutions, you can often resolve the “Bootmgr Missing” error and get your Windows 10 system back up and running smoothly.

Last Resort Options: Clean Installation and Hardware Replacement

If you have tried all other solutions and still encounter the “Bootmgr Missing” error in Windows 10, your last resort options are a clean installation or hardware replacement.

A clean installation involves reinstalling the Windows operating system from scratch. This will erase all data on the hard drive, so be sure to back up any important files beforehand. To perform a clean installation, you will need a bootable Windows installation disc or USB flash drive.

If the clean installation does not resolve the issue, it may be necessary to replace the hardware causing the problem. This could include the hard drive, motherboard, or other components related to the boot process.

Before attempting a clean installation or hardware replacement, it is recommended to seek professional assistance, especially if you are not familiar with these processes. Additionally, consider the cost and potential data loss associated with hardware replacement.

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