How to repair “Bootmgr is missing” error, Bootloader error or 0xc0000034 error in your Windows 7, 8, and earlier

If you getting this error then don’t get worried about what to do next. Many users reinstalling their OS and they lose their data. Many of us don’t want to lose their data and want to continue with their previous operating system with their stored data. Normally this error occurs due to a damaged or corrupted boot sector on your system partition or a missing of bootloader file. Whatever the reasons now we have a solution regarding this error and we can get back our operating system, as usual, we are using previously. In the bootmgr error, you don’t need to download any tool. Here you get some commands for bootmgr error which helps you to resolve the bootmgr error.

How to repair “Bootmgr is missing” error, Bootloader error or 0xc0000034 error in your Windows 7, 8, and earlier

Bootmgr is missing error, Bootloader error or 0xc0000034 error



What is boot sector?

A sector of the floppy disk, hard disk drive or other bootable disk drives which contain instruction for computer how to boot from a driver. It contains executable code and data required by the code, including information that files system which uses to access the volume. It is created when you format a volume or drive.

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Read Also:-How to be a good Security Researcher?

Boot sector startup processes.

First, the system BIOS and the CPU initiate the power-on-self-test (POST) then the BIOS search for a boot device (bootable disk)>> Then the BIOS loads the first physical and transfer CPUs execution to that memory address. If the boot device is on master boot code is the MBR loads the boot sector of the active partition and transfer CPU execution to that memory address.

If you getting these error and you want your operating system to work fine as previously work then this method will be helpful.

  • Bootmgr is missing
  • Couldn’t find bootmgr
  • Error loading operation system
  • Missing operation system
  • FATAL-No bootable medium found! System halted.

Read Also:-How to make bootable USB drive in Windows?

How to fix bootmgr is the missing error?

First, you need to make a bootable USB or CD Drive. if you don’t have any bootable media then, you can’t able to do your next step. Fixing bootmgr in Windows with USB and other bootable media devices.

Step for window 7

Step 1

Insert Windows 7 installation disk or bootable media (USB or CD) in the disc drive then start your computer or press CTRL+ALT+DEL.

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Step 2

Press Any Key when you promoted.

Step 3

In the next step, you need to Select Language, Time And Keyboard and then click Next.

Read Also:-11 Best Tools for Creating USB Bootable in Windows and Linux.


Step 4

Then click on Repair your computer.

Step 5

Now click on the operation system that you want to repair and click on next.

Step 6

In the next step, a dialogue box open of System Recovery Option just clicks on Command Prompt.

Note: – Here one another step you can do if you don’t want to go through the Command Prompt.  Personally, I recommend you to do that first and that is startup repair. If you don’t fix your issue then it will be helpful.

Read Also:-How to make dual boot kali linux with windows?

Step 7

In the command prompt, you need to type bootrec /refuildBcd and press Enter.

Step for Windows 8, and earlier.

Step 1

Insert Windows 7 installation disk or bootable media (USB or CD) in the disc drive then start your computer or press CTRL+ALT+DEL.

Step 2

Press Any Key when you promoted.

Read Also:-How to create portable Windows To Go USB drive?


Step 3

In the next step, you need to Select Language, Time and Keyboard and then click Next.

Step 4

Then click on Repair your computer.

Step 5

In the next step click on Troubleshoot.

Step 6

Then click on Advance Option.

Step 7

There you can choose Command Prompt.

Note: – Here one another step you can do if you don’t want to go through the Command Prompt.  Personally, I recommend you to do that first and that is startup repair. If you don’t fix your issue then it will be helpful.

Read Also:-How to be a good Security Researcher?

Step 8

Now on enter these commands and hit enter

Bootrec /fix

Bootrec /fixboot Bootrec /scanos Bootrec /rebuildbcd

Also Read  Hide your private files and folder using command prompt.

After that type A to add the installation to the boot list and hit enter. Now exit from the command prompt and click on continue for go to your desktop.


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Read Also:-Top 5 websites to learn Ethical Hacking. 2016

Read Also:-How to hack wifi without rooted android phone?

Closing words

You should try startup repair first if you getting this error first time after installed windows and then you should go through command prompt. These steps are easy to do and get out from this error using these steps you don’t need to go anywhere you just need a bootable media. Setp by step guide for fixing error code 0xc0000034 and bootmgr is missing in Laptop (HP, Lenovo, Dell etc) and PC.

If you need assistance or have any query, feel free to write to us in comments below. We are happy to help you and solve your Window error.

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1 thought on “How to repair “Bootmgr is missing” error, Bootloader error or 0xc0000034 error in your Windows 7, 8, and earlier

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