- Press F8 during your computer's startup (before starting Windows). ...
- Select the operating system you want to repair, click next.
- In the system recovery options, click "Command Prompt".
- Type at the prompt, Bootrec / RebuildBcd, and then press enter.
How to backup and restore BCD file in Windows 10?
To do this:
- We download and install EasyBCD on our computer.
- We open the tool on the desktop.
- We select the BCD Backup / Repair menu option .
- We configure all the parameters to create the backup.
- File name, path where we want to save it.
- We can access other settings from Backup Settings.
How to rebuild boot BCD?
How to rebuild the BCD manually? To rebuild the BCD manually in Windows 10: With the “Advanced Recovery Mode,” boot your system. Under the “Advanced Options,” open the command prompt. Use the code – bootrec/rebuildbcd to rebuild BCD. Once the scanning is complete, choose the OS to be added to the BCD.
How can I repair Windows 10 boot entry/BCD?
How to Fix BCD Errors in Windows 10 . If you receive " Boot Configuration Data ( BCD ) missing or corrupted" or other BCD errors, execute the command below: BOOTREC /ScanOS. When the command completes, reboot your computer to see if the boot problem is resolved. If the problem is not resolved, try the command below: BOOTREC /rebuildbcd
What is the best free repair tool for Windows 10?
The Best Free Windows Repair Tools
- IOBit Driver Booster: Driver Updater. Driver Booster is one of the best updaters for windows. ...
- Snappy Driver Installer. Snappy Driver Installer is a free and open-source driver installer. ...
- FixWin 10: Repair Tool. FixWin 10 is one of the best free windows repair tools for repairing. ...
- Ultimate Windows Tweaker 4. ...
- Windows Repair. ...
- Missed Features Installer. ...
How do I restore my original BCD?
Restart the computer.Press the F8 key to open Advanced Boot Options.Select Repair your computer. Advanced Boot Options on Windows 7.Press Enter.At the System Recovery Options, click Command Prompt.Type: bcdedit.exe.Press Enter.
How do I fix BCD file?
Rebuild BCD in Windows 11/10Boot your computer into Advanced Recovery Mode.Launch Command Prompt available under Advanced Options.To rebuild the BCD or Boot Configuration Data file use the command – bootrec /rebuildbcd.It will scan for other operating systems and let you select the OS's you want to add to BCD.
How do I fix boot BCD startup errors in Windows?
Step by Step guideInsert the installation media into the PC. ... Find out how to access the BIOS/UEFI of the machine. ... Change the boot order so that the computer boots from the USB or DVD drive before it boots from internal hard drives.Click next on the first screen of setup. ... Select Repair your computer on the next screen.More items...•
How do I rebuild BCD and master boot record?
The instructions are:Boot from the original installation DVD (or the recovery USB)At the Welcome screen, click Repair your computer.Choose Troubleshoot.Choose Command Prompt.When the Command Prompt loads, type the following commands: bootrec /FixMbr bootrec /FixBoot bootrec /ScanOs bootrec /RebuildBcd.More items...
Is rebuilding BCD safe?
Rebuilding the BCD doesn't affect your personal data or settings in any way, so you can continue to use your computer as normal.
What is Bootrec FixBoot?
/FixBoot. This option writes a new boot sector to the system partition by using a boot sector that's compatible with Windows Vista or Windows 7. Use this option if one of the following conditions is true: The boot sector was replaced with a nonstandard Windows Vista or Windows 7 boot sector. The boot sector is damaged.
How do I fix boot BCD Windows 10 without disk or USB?
Next, follow these steps:Insert your installation media into the computer.Boot to the media. ... Click Next on the Windows Setup menu.Click "Repair your computer."Choose Troubleshoot.Select "Advanced options."Pick "Command Prompt."Type Bootrec /fixmbr and press the enter key.More items...•
What causes boot BCD error?
One of the most common causes of this error is the BCD that became missing or corrupt. That could happen because of disk write errors, power outages, boot sector viruses, or errors made while configuring the BCD manually.
Can you fix Bootmgr without CD?
To fix BOOTMGR is missing in Windows 7 without CD, you can create a bootable USB from ISO and then boot the PC from the USB drive to enter the Windows Recovery Environment. Click the Repair your computer option after selecting your language, time and keyboard method.
What happens if MBR is corrupted?
MBR (Master Boot Record) is a default record created automatically when you install Windows. It holds valid information about your hard drive partitions, and it plays an important role during booting. Hence, when the MBR is corrupted, your PC will find it difficult to boot properly.
Does Bootrec work in Windows 10?
Bootrec in Windows 10 In Windows 10 you can access the bootrec.exe utility by using your original installation media: DVD or USB drive. If you can't boot into your Windows 10 system or don't have the original installation disc, use Easy Recovery Essentials and run Command Prompt.
How do I know if my MBR is damaged?
Most of the time, you will get the following error messages which indicate a serious MBR problem:Error loading operating system.Invalid partition table.Operating System not found.No bootable medium found. System halted.Non-System disk or disk error.Reboot and select proper boot.
How do I fix failure when attempting to copy boot files?
Fix the error using a free GUI MBR repair tool You can also fix the BCDboot failure when attempting to copy boot files via AOMEI Partition Assistant. It is a free and professional disk manager. The Rebuild MBR feature allows you to repair corrupted MBR to the computer without destroying any data.
How do I view a BCD file?
The BCD registry file is located in the \Boot\Bcd directory of the active partition. EFI–based operating systems. The BCD registry file is located on the EFI system partition.
What is BCD error?
The Boot Configuration Dara for your PC is missing or contains errors. File: \Boot\BCD. Error code: 0xc000014c. You'll need to use recovery tools. If you don't have any installation media (like a disc or USB device), contact your PC administrator or PC/Device manufacturer.
Can you fix Bootmgr without CD?
To fix BOOTMGR is missing in Windows 7 without CD, you can create a bootable USB from ISO and then boot the PC from the USB drive to enter the Windows Recovery Environment. Click the Repair your computer option after selecting your language, time and keyboard method.
How to start a recovery screen on Windows 7?
On Windows 7 or Windows Vista: Start System Recovery Options . In Windows 10/8, select Troubleshoot > Advanced options . Select the Command Prompt button to start it. Command Prompt won't start immediately. Your computer will show a "Preparing" screen for a short time while it readies the computer.
Can you delete a BCD file?
You could delete the BCD file entirely since you're about to create a new one. However, renaming the existing BCD accomplishes the same thing since it's now unavailable to Windows, plus provides you with another layer of backup, in addition to the export you did in Step 5, if you decide to undo your actions.
The Boot Configuration Data File is Missing in Windows 10 or 11
If the BCD file is missing or corrupted, if you removed/formatted a separate disk partition with the System Reserved label (and 500 MB in size) or a special OEM recovery partition, a user is likely to see the following message when trying to boot Windows:
How to Automatically Repair Windows Bootloader?
If this error appears, first of all, try to fix the problem with booting the OS using the Startup Repair mode that can be started from the Windows Recovery Environment (Windows RE).
Identifying Disk Partition Layout and Drive Letters
Very important. All instructions given below are suitable for standard BIOS computers (or booting in UEFI legacy mode) with the MBR partition table. On computers with UEFI firmware, you need to use the following guides to repair the EFI bootloader on Windows 10 or to restore deleted EFI partition.
How to Recreate a Windows Boot Configuration (BCD) from Scratch?
Next, use the using BCDedit command to create a new Boot Configuration Data file (it is supposed, you don’t have the BCD backup file ).
Create a copy of BCD in Windows 10 from CMD
Luckily, from the command line it is possible to create a BCD backup in Windows 10 easily and we do not need to resort to third-party tools. The steps to follow are:
Make use of a third party tool
If we don’t handle ourselves very well on the command line and prefer to do it in a more graphical way, then we can use a tool like EasyBCD. It is a free software that allows us to modify the bootloader and its entries and that also does not offer the possibility of creating a backup copy of the Windows 10 BCD boot file. To do this:
How to repair bootloader?
The procedure for the automatic repair of the bootloader used in the Windows Recovery Environment (WinRE), is usually useless in such cases. But it’s worth a try anyway: 1 Try to boot your device from the recovery disc or installation Windows 10 media; 2 On the installation screen, click the Restore System; 3 Then select Troubleshoot -> Startup Repair and select the OS whose bootloader you want to try to recover; 4 But most likely the result will be negative: Automatic Repair couldn’t repair your PC.
Does bcdedit see EFI partition?
The bcdedit tool doesn’t see this EFI partition, and cannot manage the bootloader configuration on it. If the computer boots with a black screen with the message “Operating System not found”, most likely the Windows bootloader is completely removed. Follow the instructions on the link.
How to recover bootloader?
Automatic Windows Bootloader Recovery 1 First, we try to boot the device from the recovery disc or install Windows 10 media. 2 Next, on the installation screen, we click the Restore System. 3 Then we select Troubleshoot >> Startup Repair and we select the OS whose bootloader we want to try to recover. 4 However, most likely the result will be negative: Automatic Repair couldn’t repair your PC.
Why is my bootloader corrupted?
It may occur due to incorrect actions during Windows recovery, removal of some data on hidden partitions, malicious software (virus, ransomware, etc.) and for some other reasons.
