Fix “BOOTMGR is Missing” Error on Windows 10, 8, 7

If somehow you knew that your PC is going to show an error as you boot it, what would be it? If BSOD was your answer, then you were not wrong. Getting a Blue screen is one of the fastest ways to know you have an error but it is not the fastest.  If all your hardware is working fine, then the fastest error you would ever get it BOOTMGR is missing.

So if you are having trouble while booting your PC, or get any error code related to BOOTMGR then we have a solution for you. In this article I will tell different ways to fix BOOTMGR is missing error on Windows 10, 8 and 7.

What is BOOTMGR is Missing issue?

The Boot Manager or BOOTMGR is an essential windows software responsible for executing winload.exe file. Without executing this file, the windows startup process won’t begin after the POST process.

What is POST Process?

As you boot your PC, the Power On Self Test begins to check if all hardware and modules are working as it runs the BIOS. After this process, the Windows starts to load which is where BOOTMGR is required. And, if by any reason, the BOOTMGR is not accessible, you Windows won’t load i.e. you get the BOOTMGR is missing error.

Why this error?

Well, since the BOOTMGR is an essential Windows Software most of the reasons for these issues are same as those of BSODs. Including the most common one such as malfunctioning files, outdated bios, bad hard drive sector, loose SATA cables, etc.

How to Fix Bootmgr Missing Error in Windows

Solving this error is not a huge deal, but it will be time-consuming as we don’t know the source. The best course of action here will be to follow the methods below one by one.

1. Check Hardware

Let’s start with the basics here. Since this is a boot-time error which comes right after POST, there is a good chance that the Harddrive is not connected properly.

  • If you use a Desktop, then start by checking your SATA connection.  Also, go through the BIOS once to check your Hard drive configuration in case you are using multiple HDDs or SSDs.  And then restart your PC.

  • If you are using a Laptop then check your BIOS only.
  • Also, Remove all external storage devices such as CDs, pen drive, flash drive external HDD, etc. After this simply restart your device. Keep in mind that you can also get BOOTMGR error by mistake, so restarting it will solve it.

2. Perform Startup Repair

Startup Repair is a simple Windows repair process that deals with boot-time errors. By using this process, you should be able to solve the problem.

If you cannot boot your PC then,

  • Insert a bootable device, and boot/reboot your PC. Navigate through bios to access Boot menu. You can also do it directly by holding a pre-assigned key. For my PC it is the Del key.
  • Now select the inserted Bootable device and go to the Windows Installation screen.

  • On the installation screen, click on  Repair your computer on the left bottom corner of the screen.

  • Now navigate through Choose an Option-> Troubleshoot-> Advanced Settings -> Startup Settings.

If you can boot your PC then,

  • Open Start menu and type “Recovery Options“.
  • Under Recovery Options, go to Advanced Startup and click on Restart Now.

  • As the PC restarts, you will get to Choose an Option screen.
  • From there navigate Choose an Option-> Troubleshoot-> Advanced Settings -> Startup Settings.

Let the process finish itself and then reboot your PC, to see if the problem is solved or not.

3. Rebuild BCD to Fix BootMgr problem

If the Boot Configuration Data or BCD is somehow corrupted, then it will cause an error to BOOTMGR. The BCD contains various boot configuration options and controls the whole Windows boot process. By using bootrec.exe we can fix this problem.

The bootrec.exe is a built-in repair tool in the Windows Recovery Environment designed to fix BCD issues.

To do so,

  • Go to Advanced Options as shown in the second method.  And select Command Prompt.

  • In the Command Prompt, type in- bootrec /rebuildbcd  

  • Press Enter and then reboot your PC.

If that did not solve the problem, open Command Prompt again and type – bootrec /fixboot and hit Enter. Let the process finish itself and then reboot your PC.

4. Perform System Restore

System restore is a tool used to protect data loss in case of installation error or data corruption occurs. In simple words, when you create a backup or restore point, your Windows takes a snapshot of the current Windows position. By using System Restore you can reverse your Windows to that particular point or that snapshot.

If you don’t have a restore point then Windows will restore to its factory setting. So, ultimately any damage to BOOTMGR will be repaired.

To access system restore point,

  • Right-click on This PC and go to Properties.

Open Properties by right clicking on This PC

  • Now click on System Protection, on the left side of the Window.

Click on System Protection, To access System Restore Point

  • Again, click on System Restore to restore your computer.

Click on System Restore in System Properties Windows

  • A new dialogue box will open now, click on Next to proceed

System Restore Windows-> Click Next to proceed

  • Choose the most recent Restore Point and click on Next. 

Choose a restore point to restore your PC

  • At last, Click on Finish to restore your system to that state.

This should fix BOOTMGR is missing error on your Windows 10, 8, 7 or even Vista.

Bottom Line

At the current time, there are several common Windows errors including several BSODs, but nothing related BOOTMGR. Any boot time error is not a big deal, but since you can’t use your PC it makes it a big problem.

By the help of these methods, you should be able to fix the problem in no time. We included cmd methods as well as methods that can be applied without using Installation CD. These methods should also fix any error related to BOOTMGR other than BOOTMGR is missing.

At last, If you want to make any suggestions or have any other method to solve this issue, feel free to comment. Thanks, for reading my article, I hope it works out for you.

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