How To Restore Windows 10, 8, 7 Boot Loader
Read about restoring Windows 10 bootloader from a working or faulty system with the command prompt. Recovering bootloader after installation of Linux, Ubuntu, Windows Often the reason for the operating system to fail when loading is the damaged bootloader Windows 10. Recovering system files with the System Restore function doesn’t help to bring the bootloader back to life. Then how can it be recovered?
The operating system Windows 10 won’t load – what should I do?
Recover The Data Lost Because of The Damaged Bootloader
Recovering Windows bootloader, damaged or overwritten system files, file system errors or HDD bad sectors are onluy some of the things to cause loss of data.
Restoring Windows boot sector can make the operating system work again but it can result in loss of user files. It is not always possible to restore Windows operability without a clean installation of the operating system which can also cause loss of files.
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Recover Windows 10 Bootloader From The Command Prompt
If damaged, Windows bootloader can be recovered with the use of command prompt.
If the system won’t load, launch the diagnostic utility from the boot disk:
- Start the computer using the boot disk.
- In the menu that appears, go to System Restore / Troubleshooting / Advanced Options / Command Prompt.
If you can load Windows, do the following:
- Press Windows + R.
- Type cmd in the window that appeared and press Enter.
Use the command bootrec.exe to recover the bootloader:
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Type in the command prompt: bootrec.exe /fixboot
- Restart the computer.
Bootloader Recovery Software Windows 10
If you don’t have an authentic Windows boot disk at hand, you can load the computer, including for the purpose of recovering the bootloader, with the help of a boot selection disk such as LiveCD. As a rule, such disks feature several programs for bootloader recovery Windows 10. Such programs can be launched right from LiveCD – they are portable and do not require an operating system to start from the computer’s hard disk.
For this purpose, do the following:
- Find a LiveCD image which is good enough for your needs, and record it onto a CD\DVD or a flash drive.
- Connect the LiveCD to your computer and turn it on. The computer will automatically boot from LiveCD (the boot sequence should be changed in BIOS or UEFI so that CD or USB comes first).
Run the bootloader recovery software from your LiveCD:
- EasyBCD;
- MultiBoot;
- FixBootFull.
Follow the program’s directions.
- Wait until the recovery process is complete.
- Restart the computer without using LiveCD.
Recovering Windows 10 Bootloader After Installation of Linux, Ubuntu
Sometimes the main operating system Windows 10 won’t boot if Ubuntu Linux is instaled as the second operating system. It is connected with the probable overwriting of Windows boot sector.
This is what you should do to recover Windows loader and still have the opportunity to load Ubuntu Linux:
- Save Ubuntu Linix boot sector. To do it, start the terminal and enter:
dd if=/dev/sda3 of=/linux.boot bs=512 count=1.
As a result of this command, the boot record will be copied to the user directory which the PC is using. Go to the user folder and copy this file into the partition where Windows is installed. - Start the computer using Windows boot disk.
- In the menu that appears, go to System Restore / Troubleshooting / Advanced Options / Command Prompt.
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Type in the command prompt:
bootrec.exe /FixMbr
bootrec.exe /FixBoot
As a result of, Windows bootloader will be restored, but there is high risk of damaging Ubuntu Linux loader. To restore its operability do the following:
Restart Windows, open a console window with administrator rights and enter:
bcdedit /create /d “Linux” /application BOOTSECTORCopy the disk ID which will be shown as {ID} after this command.
Here is an example of disk ID: {с3454a4v-9652-fg78-94re-d8d2d3lh5a23}Enter the following command using the copied ID:
bcdedit /set {с3454a4v-9652-fg78-94re-d8d2d3lh5a23} device partition=c:
partition=c: indicates the partition where Windows is installed.Now use the file you have saved previously and the disk ID:
bcdedit /set {с3454a4v-9652-fg78-94re-d8d2d3lh5a23} path \linux.boot
bcdedit /displayorder {с3454a4v-9652-fg78-94re-d8d2d3lh5a23} /addlast
bcdedit /timeout 10
After you have done it, your computer can boot with either Windows or Ubuntu Linux.
Is the Windows 10 bootloader recovered now? Leave your feedback and ask questions in your comments.
I tried the command prompt in recovery menu, and when I tried to use the bootrec.exe command it says Access Denied. What can I do?
Make sure you have an administrator rights on this PC. Run the command prompt as administrator.
I have a genuine Windows 7 version that refuses to perform factory restore. Is there a solution and thanks
Try this method: https://www.youtube.com/watch?v=tLFMeAsZO2Q
Have Windows Installation media?
I want to solve a problem recovery manager Not responding or not working in a computer COMPAC CQ58
Try to start it using a boot or installation disk.
What are some other tools or methods that can be used to repair or restore the Windows boot loader?
How can you rebuild the BCD (Boot Configuration Data) using the Bootrec tool?
What is the Bootrec tool, and how can it be used to troubleshoot boot loader problems?
Bootrec is a command-line tool used to troubleshoot boot loader problems in Windows. It can be used to repair the master boot record (MBR), the boot sector, and the Boot Configuration Data (BCD) store. It can also be used to rebuild the BCD store from scratch, allowing Windows to start normally again. Bootrec can also be used to scan for and fix corrupted system files, which can cause boot loader problems.
What is the "repair your computer" option in the Windows installation media, and how can it be used to fix boot loader issues?
The "Repair Your Computer" option in the Windows installation media is a feature that allows users to troubleshoot and repair certain issues with their computer. It can be used to fix boot loader issues by allowing users to access the advanced startup options menu. From here, users can access a variety of tools and options, including the ability to repair the boot loader. This can be done by selecting the "Repair Your Computer" option and then selecting the "Troubleshoot" option. From there, users can select the "Advanced Options" menu and then select the "Command Prompt" option. Once in the command prompt, users can use the bootrec.exe command to repair the boot loader.
How can you create a bootable USB drive or DVD for Windows installation media?
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