Windows 10 Won’t Boot: Fix with Startup Repair and BootRec

If you met Windows 10 won’t boot problem, you can fix it with Startup Repair and BootRec commands. Learn how to do it from this page.


by Lily Updated on November 2, 2023

Share this: instagram reddit

User case: Windows 10 boot failure


How do you repair Windows 10 if it does not boot?

Hello, guys! I have a HP computer installed with Windows 10 operating system. It works fine until a recent update - the Windows 10 won’t boot after recent update. I’ve tried to repair the program, but the Windows 10 boot failed again. Is there a way to fix Windows 10 won’t boot without reinstalling?

- Question from HP Community

Actually, there are many users who have met the problem that Windows 10 won’t boot successfully when they turn on the computer. Well, “Windows 10 won’t boot” is a common issue that can be caused by many reasons.

Why Windows 10 won’t boot?

To figure out why your Windows 10 won’t boot, you need to know about the Windows 10 boot process: 

When Windows 10 starts, the BIOS or UEFI Firmware is loaded and performs a small set of checks on your hardware called Power On Self Test (POST). And then, the BIOS scans the hard disk master boot record (MBR), which loads an essential file into main memory called WINLOAD.EXE.

WINLOAD.EXE kicks off the start-up progress by loading the NTOSKRNL.EXE and HAL. Then, Windows 10 starts up and performs tasks such as initializing hardware like mouse and keyboard and reading the Windows Registry and user profile.

However, if there is anything wrong with WINLOAD.EXE, the Windows 10 won’t boot and you will see a black screen titled “Windows Boot Manager” with an error reads:

File: \windows\system32\winload.exe

Status: 0xc0000605

Info: A component of the operating system has expired.

Windows 10 Not Booting

This could be a serious error, but don’t panic. You can fix the error with Startup Repair or BootRec commands.

How to use Startup Repair or BootRec commands to fix Windows 10 won’t boot

A black screen and Windows 10 boot failure often mean that your master boot record is on the fritz. And here, you can try to fix the issue with Startup Repair and BootRec commands.

👉 Run Windows 10 Startup Repair from boot
👉 Run BootRec commands in Windows 10
👉 Easy way to boot Windows 10 computer in case of boot failure

Run Windows 10 Startup Repair from boot

Booting into Windows recovery environment (Windows RE) to perform a Startup Repair can easily fix problems that keep Windows from loading. You can follow the steps below:

1. To access Windows RE, you need to turn your computer on and off three times. Make sure you turn off the computer when you see the Windows logo. After the third time, Windows 10 will boot into diagnostics mode. Click Advanced options when the recovery screen appears.

Automatic Repair

2. Then, click Troubleshoot to get into the screen of Reset your PC or Advanced options.


3. Click Advanced options here.

Advanced Options

4. Then, click Startup Repair to fix Windows 10 won’t boot problem.

Click Startup Repair

Run BootRec commands in Windows 10

If the Windows 10 Startup Repair not working, you can try to fix Windows 10 with BootRec commands.

1. Boot your computer from a Windows installation CD/DVD. Then click Repair your computer in the Windows Setup window.

Repair Your Computer

Tip: If you do not have the installation media, you can create a recovery USB drive on a working Windows 10 PC. Then set up your BIOS to boot from the USB drive.

2. Click Troubleshoot > Advanced options > Command Prompt in order.

Advanced Options

3. Then, in the command prompt, type in the following commands one after the other. You should press Enter after typing each command.

  • BOOTREC /FIXMBR (this command will fix any corruption issues with the master boot record)
  • BOOTREC /FIXBOOT (this command will attempt to write a new boot sector on the hard disk if Windows detects damage)
  • BOOTREC /RebuildBcd (this command may be able to fix an error like “Boot Manager is Missing”, and can also restore boot entries for older versions of Windows if you have a dual boot configuration)

Bootrec Commands

Easy way to boot Windows 10 computer in case of boot failure👍

It is wise to create a Windows 10 bootable rescue media in case something like Windows 10 boot failure happens. To create recovery media for Windows 11/10/8/7, you can use the freeware AOMEI Backupper Standard, which integrates many useful functions.

  • It can help you backup all kinds of data, including Windows OS, internal/external hard drives, specific files and folders, etc.
  • It enables you to create automatic backups using the "Schedule Backup" feature.
  • It allows you to make bootable media using USB drive, CD, or DVD.

In order to protect your computer from system crashes or boot errors, the best way is to create system backup and a bootable device for recovery before accidents occur. As a result, when your Windows 10 fails to boot, you can use this bootable media to restore computer to an earlier date.

How to create bootable media with AOMEI Backupper? Here are the detailed steps:

Step 1. Free download AOMEI Backupper. Install it on your Windows 10 computer. To create recovery media, here you need to click Tools -> Create Bootable Media.

Download Freeware Win 11/10/8.1/8/7/XP
Secure Download

Create Bootable Media

Step 2. Select bootable disc type in the following window. It is recommended to select Windows PE and it supports both legacy/MBR and UEFI/GPT boot modes.

Windows Bootable Disc

Step 3. Choose a CD/DVD or USB drive to create bootable recovery media, and click Next to run the progress.

Select USB Device


You can fix Windows 10 won’t boot with Startup Repair or BootRec commands. What if Windows 10 won’t boot and won't repair? The best way to rescue your computer from system crashes or boot errors is to create a system image and recovery USB with AOMEI Backupper in advance.

Besides the functions mentioned above, AOMEI Backupper allows you to do many other things to keep your data safe, such as incremental backup and automatic file sync. If you need more advanced features like system clone and universal restore, please upgrade to AOMEI Backupper Professional to unlock them.

Lily · Editor
Lily Green joined AOMEI in 2018 and has since become a professional in the areas of data protection and data transfer. She is committed to helping users protect their precious computer data and troubleshoot Windows system errors. She consistently stays vigilant about the latest trends in technology, guaranteeing that the given information aligned with the ongoing advancements in the field.