How to fix error bootmgr is missing on Win 7, Win 8 and Win 10

What is the error Bootmgr is missing?

Bootmgr Windows Boot Manager, also known as Windows Boot Manager, is used to control the boot process of Windows. Bootmgr helps launch winload.exe when you start your computer to load the Windows operating system. Bootmgr is missing error only occurs on Windows Vista, Win 7, Windows 8, 8.1 and Win 10. On Windows XP this error does not occur.

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Error Bootmgr is missing making the computer not able to distinguish where is the Boot partition, or maybe you just upgraded the partition hard drive, making the incorrect partitions active, which can cause the machine to not boot. This is a common cause studied by GhienCong Nghe.

Here is a fairly common error when opening the computer, often appearing a black screen with the following text: Bootmgr is missing. Press Ctrl + Alt + Del to Reset.

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The above screen appears telling us to press 3 buttons Ctrl + Alt + Del then do not restart the computer. However, after booting up they will return the same error as above. This proves that your machine cannot fix the error by itself according to the instructions shown on the screen.

When there’s an error Bootmgr is missing, The screen usually appears some messages as follows:

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• “Bootmgr is missing – Press any key to restart.”
• “Bootmgr is missing – Press Ctrl + Alt + Del to restart.”
• “Couldn’t find bootmgr.”

Why error? Bootmgr is missing appear?

When you turn on the computer, processes POST (short for Power On Self Test) starts running with the BIOS before booting your copy of Windows. The error appears as soon as the POST is complete and Windows starts loading.

POST is a set of processes that are run immediately upon PC startup, such as checking if the PC’s RAM, peripherals, and other hardware components are working properly. After these processes are completed by the BIOS, the Windows boot loader will start, where the boot error “Bootmgr is missing” in Windows will appear.

Bootmgr is missing error can be caused by many reasons, including boot sector virus, failed Windows installation or update, or damaged hard disk.

A very common reason why your PC can’t load and shows this error is when it tries to boot from an unbootable hard drive or flash drive.

How to fix error bootmgr is missing

Using Easy Recovery Essentials

Easy Recovery Essentials is guaranteed to automatically fix the Bootmgr is missing error using the built-in Automated Repair option. EasyRE is currently available for Windows XP, Vista, 7 and 8 and can be downloaded on any PC.

Step 1: Download Easy Recovery Essentials.

Remember to pay attention to your Windows version (XP, Vista, 7 or 8) before downloading EasyRE. If you do not know the version, in the guide below GhienCongList will help you.

How to tell the version based on the Windows screen at startup:

How to identify based on icons when used on Windows:

Step 2: Boot your PC from the Easy Recovery Essentials CD or USB you created.

Step 3: When EasyRE is running, select the option Automated Repair and click tiếp tục.

Step 4: After EasyRE scans the drives on your computer, locate and select the drive letter for your Windows installation from the list, then click the button Automated Repair to begin.

Step 5: Easy Recovery Essentials will start analyzing the selected drive for errors Bootmgr is missing. EasyRE will check and attempt to automatically fix errors with disks, partitions, booters, file systems, bootloaders and registry. You don’t need to intervene because EasyRE’s repair is completely automatic:

Step 6: Once the process is complete, EasyRE will report its error findings. Click the button Restart to restart your PC and check if the errors of Bootmgr is missing on Windows have been fixed.

Step 7: Error Bootmgr is missing fixed when your PC starts to boot.

Some other ways to fix bootmgr is missing error

Here are 5 ways to fix Bootmgr is missing error selected by GhienCongList from many different fixes and filtered out to choose quick, easy, and highly successful ways.

Erase non-bootable disks

The first and easiest fix is ​​to check if there are any existing files in the USB port, floppy drive, or optical drive (CD, DVD).

The Bootmgr is missing error will appear if your computer is trying to boot from one of these drives with non-bootable files inserted. After you remove the USB drive or CD that the computer is trying to boot from and can’t, the error should go away.

After it’s gone, consider changing the boot order from the BIOS to make sure your PC boots from the hard drive and not from any other non-bootable drive next time. To prevent errors like this in the future, check out this guide carefully!

Using Startup Repair

This repair method works if you have a disc where Windows is installed. Here are the steps to fix Bootmgr is missing with the installation CD:

Step 1: Insert your Windows installation CD.

Step 2: Restart your computer and boot from that CD.

Step 3: Press any key when you see the message “Press any key to boot from CD or DVD”.

Step 4: Click Repair your computer after selecting language, time.

Step 5: Select your Windows installation drive and click tiếp tục. The standard drive is usually C:.

Step 6: Choose Startup Repair.

Step 7: Wait for the process to finish and wait for your computer to start up.

Use bootrec.exe to start BCD

Bootrec.exe is a tool built into the Windows recovery environment (Windows RE) that you can use to check for problems and repair errors.

Bootrec.exe can repair boot configuration data and master boot records. BCD, which stands for Boot Configuration Data, contains boot configuration options and controls how Windows is started.

Here are the steps to access bootrec.exe to start BCD:

Step 1: Insert your Windows 7 or Vista installation disc

Step 2: Restart your computer and boot from the CD

Step 3: Press any key at the message “Press any key to boot from CD or DVD“

Step 4: Choose Repair your computer after you select the language, time and keyboard method

Step 5: Select your Windows installation drive (usually C:)

Step 6: Click next

Step 7: Choose Command Prompt in System Recovery Options box

Step 8: Write the following command and press Enter

bootrec / Buildbcd

Run System Restore ( system recovery)

The next solution will only work if you have it enabled System Restore on Windows your. Here are the steps to restore your PC using System restore:

Step 1: Insert the Windows 7 or Vista installation disc.

Step 2: Restart your computer and boot from the installation disc.

Step 3: Press any key when the message “Press any key to boot from CD or DVD” appears on your screen.

Step 4: Click Repair your computer after selecting the language, time and keyboard method.

Step 5: Select the drive where you installed Windows (usually C:).

Step 6: Click Next.

Step 7:Choose System Restore are from System Recovery Options box.

Step 8: Follow System Restore’s instructions to select a restore point.

Step 9: Restore your PC by clicking End.

Use Bootrec.exe to fix Bootmgr is missing

The partition boot sector is stored on the hard drive and contains the code needed to start the Windows boot process. If this partition is damaged or not properly configured during Windows installation, it will result in a “Bootmgr is missing or corrupt” error on startup.

This method requires a copy of your original Windows installation disc.

Here are the steps to fix this error using the bootrec.exe tool, the same tool used in Troubleshoot #4 above:

Step 1: Insert the Windows 7 or Vista installation disc.

Step 2: Restart your computer and boot from the installation disc.

Step 3: Press a key when it says “Press any key to boot from CD or DVD” appears on your screen.

Step 4: Click Repair your computer after selecting the language, time and keyboard method.

Step 5: Select the drive where you installed Windows (usually C:).

Step 6: Click Next.

Step 7: Choose Command Prompt are from System Recovery Options box.

Write the following command and press Enter:

bootrec / fixboot

Step 8: Wait for this message to appear:

The operation completed successfully.

Step 9: Restart your computer

Epilogue

At this point, you probably know more about Error Bootmgr is missing and how to solve problems with Bootmgr is missing. Please share with TechtipsNReview.com by commenting below the article if you have an easier way to fix it.

Good luck!

According to Neosmart.net