如果引导配置数据 (BCD)^{(Boot Configuration Data (BCD))}文件意外损坏或删除，Windows 将无法正确引导。因此，任何涉及更改或修改引导加载程序设置的任务都应极其谨慎地执行。作为一项安全措施，可以随时创建备份副本以恢复原始引导配置数据^{(Boot Configuration Data)}( BCD ) 注册表文件，以防出现问题。首先，有两种方法可以在Windows 10/8/7中备份或恢复BCD 存储^{(BCD Store)}。

1. 使用命令行界面
2. 使用第三方免费软件工具

让我们详细介绍一下。

BCD存储是一个特殊的二进制文件，名称为BCD，位于活动分区的BOOT目录中。^(BOOT)引导管理器旨在根据位于称为引导配置数据或简称 BCD的特殊存储中的现有配置加载系统。引导管理器“bootmgr”根据加载到BCD存储中加载计算机上安装的Windows 操作系统的核心。^{(Windows OS)}

^(Backup)在Windows 10中^{(Windows 10)}备份和恢复BCD文件

1]使用命令提示符

第一种方法利用提升的命令提示符^{(Command Prompt –)}-打开命令行界面并键入以下内容 -

bcdedit /export f:\01.bcd

这将在您的D 驱动器^{(D Drive)}上创建名为01.bcd的^(01.bcd)BCD文件的备份。因此，您需要适当地选择驱动器号和^(Drive)BCD文件的名称。

完成后，将通知用户该过程成功完成。

恢复过程也非常相似。您所要做的就是使用带有 /import 参数的命令 -

bcdedit /import f:\01.bcd

这就是它的全部。

2]使用EasyBCD

第二种方法使用EasyBCD 工具^{(EasyBCD tool)}。它是一个高级GUI，可以轻松修改Windows引导加载程序和其中的条目。第一次运行此工具时，它会自动获取BCD^(BCD)的可用备份。在恢复备份之前，您可以预览EasyBCD备份。

重要的是，在继续之前确保您选择了您想要的正确BCD，然后再次加载系统 BCD^{(System BCD)}并恢复！

之后，只需输入保存文件的目标路径（以.bcd结尾），或者使用右侧可见的浏览按钮，就在“浏览”文本框和一个地方旁边保存文件。准备就绪后，单击“备份设置”^{(Backup Settings)}并放松。

要恢复BCD文件，请浏览到上次创建的EasyBCD保存文件（以^(EasyBCD).bcd结尾），然后单击“恢复备份”^{(Restore Backup)}按钮。恢复^(Restore)功能将立即启动。如果需要，EasyBCD可以随时从“ BCD备份/修复”页面创建BCD设置的备份。^(BCD)

如果您还没有备份您的 BCD 存储，最好现在就这样做，因为如果 BCD 文件丢失或损坏，Windows 将无法启动。
^{(If you have not backed up your BCD Store yet, it might be a good idea to do so now, because if ever the BCD file is missing or becomes corrupted, Windows won’t be able to start.)}

这篇文章将向您展示如何在需要时重建 BCD^{(rebuild BCD)}，以及如何更改 Windows 启动徽标^{(change the Windows Boot Logo)}。

How to Backup & Restore Boot Configuration Data (BCD) in Windows 10

Windows will fail to boot correctly if the Boot Configuration Data (BCD) file is corrupted or deleted, accidentally. As such, any task involving a change or modification in the bootloader settings should be exercised with extreme caution. As a safety measure, one can always create a backup copy to restore the original Boot Configuration Data (BCD) registry file, in case something goes wrong. Primarily, there are two ways of backing up or restoring the BCD Store in Windows 10/8/7.

1. Using the command-line interface
2. Using a third-party freeware tool

Let’s cover it in a bit of detail.

The BCD storage is a special binary file with the name BCD located in BOOT directory of the active partition. The boot manager is designed to load the system in accordance with the existing configuration located in the special storage called Boot Configuration Data or BCD in short. The boot manager ‘bootmgr’ loads the core of Windows OS installed on the computer, in accordance with the loading into BCD storage.

Backup & restore BCD file in Windows 10

1] Using Command Prompt

The first method leverages elevated Command Prompt – open the command line interface and type the following-

bcdedit /export f:\01.bcd

This will create a backup of your BCD file named as 01.bcd on your D Drive. So you need to select the Drive letter and the name for your BCD file suitably.

Once completed, the user will be notified of the successful completion of the process.

The restoration process is also quite similar. All you have to do is use the command with the /import parameter-

bcdedit /import f:\01.bcd

That’s all there is to it.

2] Using EasyBCD

The second method uses EasyBCD tool. It is an advanced GUI that makes it easy to modify the Windows bootloader and the entries residing within it. The first time you run this tool, it automatically takes the available backup of your BCD. Before restoring the backup, you can preview an EasyBCD backup.

It is important that before proceeding further ensure you have selected the right BCD you’d want, then load the System BCD once more and restore!

After that, simply type in the path to the destination save the file (ending in .bcd), or else use the browse button visible on the right-hand side, just adjacent to the ‘browse’ text box and a place to save the file. When you’re ready, click “Backup Settings” and relax.

To restore the BCD file, browse to the EasyBCD save file created last time (ending in .bcd) and click the “Restore Backup” button. Restore function will start instantly. If required, EasyBCD can create a backup of your BCD settings at any time from the “BCD Backup/Repair” page.

If you have not backed up your BCD Store yet, it might be a good idea to do so now, because if ever the BCD file is missing or becomes corrupted, Windows won’t be able to start.

This post will show you how to rebuild BCD should the need arise, and this one how to change the Windows Boot Logo.

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