5 Methods to Fix Bootmgr is missing error on Windows 8, 10 & 11?

One very fine morning you start your laptop and suddenly you are welcomed with the error message:

Bootmgr is missing press CTRL + ALT + DEL to restart.

You restart your computer by pressing CTRL + ALT + DEL but no luck is found. You got the same message again and again. You won’t be able to start your computer and log in to your Windows account and this error will appear after each restart.

If you want to know How to fix Bootmgr is missing error and repair startup problems, read this article and apply the methods.

How to Fix Bootmgr error on Windows 8, 10 & 11?

The Bootmgr is a windows boot sequence manager that loads all the installed windows at startup and lets you choose the OS to launch. If Bootmgr is corrupted or damaged, you will not be able to boot your windows and will get Bootmgr is missing error at startup.

Method 1: Fix using Advanced System Repair Tool

Mostly due to the corrupted system files, missing DLL files, installing an incompatible driver, boot sector viruses or malware, etc; the Bootmgr is missing error might happen. To fix this issue, start your computer in safe mode and then install Advanced System Repair Tool. Run this tool and let this tool to fix your windows startup problems. This tool not only repairs system corruption issues but also optimizes your PC for better performance.

3 Steps to Fix this Error
Step 1. Download Advanced System Repair Pro [File Size: 16.4 MB]
Step 2. SCAN your Windows PC
Step 3. Click Fix button to Repair Error

Method 2: Run Startup Repair from the WinRE Advanced Menu.

This is a kind of startup problem so you can fix it by doing startup repair. Startup repair is an advanced and automated mechanism that removes startup bugs and lets you log in to your Windows account. You can perform Startup repair as follows:

Step 1: Boot your PC using the Windows Installation media. It will open Windows Installation Wizard. Click Next.

windows os installation

Step 2: Select Repair your computer.

repair your computer option windows 10 & 11

Step 3: It will open the Advanced option or Windows Recovery Environment.
Step 4: Go to Troubleshoot.

Troubleshoot in Advanced Startup Menu Windows 10 & 11

Step 5: Choose Advanced options.

advanced option windows 10 & 11

Step 6: Select Startup Repair.

Startup Repair Windows 10 & 11

Step 7: Select OS.

Startup Repair - Select OS

Step 8: It will start Diagnosing your PC. Please wait until the process is finished.

diagnosing windows 10 & 11

Method 3: Restore Boot Configuration Data (BCD)

Boot configuration data is like a database that stores information of boot-related settings. If the Boot Configuration Data (BCD) gets corrupted, damaged, or inaccessible, the windows can’t read the boot settings and display the message Bootmgr is missing.

There is a way to rebuild or restore Boot configuration data. Just follow the steps mentioned below and restore BCD.

Step 1: Boot your PC using the Windows Installation media. It will open Windows Installation Wizard. Click Next.

windows os installation

Step 2: Select Repair your computer.

repair your computer option windows 10 & 11

Step 3: It will open the Advanced Startup Option or Windows Recovery Environment. Click on the Troubleshoot.

Troubleshoot in Advanced Startup Menu Windows 10 & 11

Step 4: Select Command Prompt.

open_command_prompt in advanced startup option

Step 5: Type the following command and press Enter to execute it.
bootrec /fixmbr
bootrec /fixboot
bootrec /RebuildBcd
Step 6: Now restart your computer, and you will not see the boot time error message Bootmgr is missing.

Method 4: System Restore

System Restore is another good method to repair your computer. When you install or uninstall any apps, the Windows OS creates an automatic restore point. This restore point is used for further restoring your operating system if anything bad happens. Here, is the complete guide on how can you restore your computer using the System Restore feature.

Step 1: Follow steps 1 to 5 from Method 2 to open Troubleshoot ➜ Advanced options in WinRE.

advanced option in advanced menu windows 10 & 11

Step 2: Select the System Restore option.

system_restore

Step 3: Click Next.

system_restore_1

Step 4: Select the Date.

system_restore_2

Step 5: Click Finish to start Restoring process.

system_restore_3

Method 5: Reinsert internal hardware

Faulty hardware components like HDD/SSD, RAM, Graphics cards, etc cause this problem. It is a good idea to remove or unplug all the unused connected hardware from your PC and check whether Bootmgr is missing error gets removed or not.

If you are a pro user and know some basics of hardware replacement, pull the RAM, HDD/SSD, and all other connected devices to your motherboard and re-insert it again. This method works most of the time and fixes boot-related issues.

Summary

If you are getting Bootmgr is missing an error on startup, apply the solution from this article. Repair Boot Configuration Data (BCD), running startup repair, and restoring your PC are great options to fix any boot-related issues on Windows 8, 10 & 11.