December 4, 2021

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Windows 10 Won’t Boot? Fix it with Startup Repair and BootRec Commands

Windows 10 Won’t Boot? Fix it with Startup Repair and BootRec Commands

In a recent piece we examined the solutions to problems with the black screen in Windows 10 with some simple troubleshooting suggestions. However, sometimes, Windows 10 fails to start due to issues in the master boot records.

In these instances, fixes must be made in the master boot records in order to make sure that everything is functioning again. Luckily that the Windows 10 recovery environment includes an automated solution for making these repairs.

If that does not work, you are able to make it happen manually from the Command prompt. While doing this process, if you are facng error of message+ keeps stopping,follow the instruction mention in Link, For Windows boot Process follow the instruction below:

 

 

Why Won’t My Windows 10 PC Boot?

It is important to note that the Windows 10 boot process is very easy. When your computer is started it, the BIOS or the UEFI Firmware gets loaded which runs a few sets of checks for your hardware, referred to as the Power On Self Test (POST).

The BIOS is then able to scan the master boot record and loads an important file in the main memory, called WINLOAD.EXE.

The boot-up process by loading NTOSKRNL.EXE (NT Kernel, the central component of Windows) and HAL (Hardware Abstraction Layer.) Windows 10 then performs tasks including initializing hardware such as your mouse or keyboard, as well as taking a look at your Windows Registry and user profile.

 

If you notice the dark black background with gray words reading “Windows Boot Manager” with an error in the form that reads “Status: 0xc0000605 Info: A component of the operating system has expired,” This means that there was a problem with WINLOAD.EXE.

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This is definitely not the best thing. However, it’s not the final word.

 

 

Performing a Startup Repair

The first thing you should try is to boot in the recovery mode in the event that it is possible, and afterward doing a repair to your startup. To enter this recovery area, switch your computer off and on three times. While it is booting, ensure that you shut off the computer once you notice the Windows logo. After the third attempt, Windows 10 will boot into diagnostics mode. Select Options for Advanced to display the recovery screen. is displayed.

Click Troubleshoot.

Choose for Advanced Options.

Click Start Repair.

 

Fix Windows 10 Winload.exe Using the Command Prompt

If you’re not able to complete a startup repair alternative, the next step is to test using the Windows 10 installation media to solve your boot problem.

If you don’t own installation media, you’ll have to connect to a functioning PC and make an Windows 10 USB Bootable Flash Drive. It is also possible to go to a functioning Windows 10 PC and create an backup drive. If you are using USB drives, make sure that you configure you BIOS so that the drive can be booted from it.. If you are using USB drives, make sure that you configure you BIOS so that the drive can be booted from it.

After you have booted into setup, select to select repair computer option. Troubleshoot, Advanced Options and Command Prompt. If you’re using the recovery drive, select Troubleshoot and then Advanced Options > Command Prompt.

 

When you see the command prompt displayed on your screen, you’ll have to issue a number of commands to identify and resolve any issues that may hinder your computer from starting.

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Type BOOTREC /FIXMBR and then hit .

This command will try to repair any issues that affect the boot master record.

If all goes according to plan If everything goes well, you will be able to see the operation successfully completed.

 

.Then Type BOOTREC /FIXBOOT Then, hit .

This command will try to write a fresh boot sector to the hard disk in the event that Windows detects the presence of damage. Most often, this occurs when the older version of Windows was installed, or an incompatible operating system like Linux had been installed.

 

If you’re seeing an error message such that the Boot Manager appears to be not working an entry, then the BOOTREC/RebuildBcdcommand could be able to solve the issue. This procedure can also bring back boot entries for old versions of Windows in the event of dual boot setup.

In the event that BOOTREC /RebuildBcd is not working it is Microsoft suggests that you backup the BCD (Boot Configuration Data) storeand then execute your BOOTREC RebuildBcd command over and over. Here’s how to accomplish this.

Enter each command, then press :

  • BCD_Backup
  • C:
  • CD boot
  • attrib bcd
  • ren c:\boot\bcd bcd.old
  • bootrec /RebuildBcd

 

Another option to consider if you’re dual booting earlier versions of Windows like Windows 7 is the BOOTREC ScanOs command. The ScanOS command is able to locate and restore entries for earlier version of Windows.

 

What if None of These Options Work?

The next option is to attempt to recover your files and then installing Windows 10 and your applications.

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If you have Windows 10 install media you can start from it, and then run a custom installation.

It will make an archive from your previous version of Windows, which is called Windows.old.

It is then possible to retrieve your personal data from the folder. You must create a custom installationthat will migrate the Windows.old data. In the event that you fail to do this, all your information will be erased.