主引导记录^{(Master Boot Record)}也称为主分区表^{(Master Partition Table)}，它是位于驱动器开头的驱动器最重要的扇区，用于标识操作系统的位置并允许^{(OS and allows)} Windows 10启动。它是物理磁盘的第一个扇区。MBR包含一个引导加载程序^{(boot loader)}，其中操作系统与^{(operating system)}驱动器的逻辑分区一起安装。如果Windows无法启动，那么您可能需要修复或修复您的主启动记录^{(Master Boot Record)}( MBR )，因为它可能已损坏。

MBR损坏的原因有多种，例如病毒或恶意软件攻击、  系统重新配置^{(system reconfiguration)}或系统未正确关闭。MBR中的问题将使您的系统陷入困境，您的系统将无法启动。所以为了解决这个问题，有几种方法可以解决这个问题。

修复或修复 Windows 10 中的主引导记录 (MBR)^{(Fix or Repair Master Boot Record (MBR) in Windows 10)}

方法一：使用 Windows 自动修复^{(Method 1: Use Windows Automatic Repair)}

面对Windows 启动^{(Windows boot)}问题时应该采取的第一步也是最重要的一步是在您的系统上执行自动修复。^{(Automatic Repair)}除了MBR 问题，它还将处理与^{(MBR issue)}Windows 10 启动问题^{(boot problem)}相关的任何问题。如果您的系统出现与启动相关的问题，请按电源按钮硬重启^{(power button)}系统三次^{(system three)}。您的系统将自动开始修复过程^{(repairing process)}，或者您可以使用Windows 恢复或安装光盘^{(Windows recovery or installation disc)}：

1.插入Windows 10可启动安装DVD并重新启动您的 PC。

2.当提示Press any key to boot from CD or DVD时，按任意键继续。

3.选择您的语言首选项，然后单击下一步^(Next)。单击左下角的修复计算机。^{(Click Repair)}

4.在选择一个选项屏幕上^{(option screen)}，单击疑难解答^{(Troubleshoot)}。

5.在疑难解答屏幕上，单击高级选项^{(Advanced option)}。

6.在高级^(Advanced)选项屏幕上，单击自动修复或启动修复^{(Automatic Repair or Startup Repair)}。

7. 等待Windows Automatic/Startup Repairs完成。

8.重新启动，您已成功修复或修复 Windows 10 中的主引导记录 (MBR)。^{( Fix or Repair Master Boot Record (MBR) in Windows 10.)}

如果您的系统响应自动修复^{(Automatic Repair)}，那么它将为您提供重新启动系统^(System)的选项，否则它将显示自动修复^{(Automatic Repair)}无法解决问题。在这种情况下，您需要遵循本指南： 如何修复自动修复无法修复您的 PC^{(How to fix Automatic Repair couldn’t repair your PC)}

方法 2：修复或重建主引导记录 (MBR)^{(Method 2: Repair or Rebuild Master Boot Record (MBR))}

如果自动修复^{(Automatic Repair)}不起作用，那么您可以使用命令提示符^{(command prompt)}来修复损坏的MBR ，方法是从高级选项^{(Advanced option)}中打开它。

1.从选择^(Choose)一个选项屏幕^{(option screen)}，单击疑难解答^{(Troubleshoot)}。

2.现在单击疑难解答屏幕中的高级选项^{(Advanced options)}。

3.从高级^(Advanced)选项窗口单击命令提示符^{(Command Prompt)}。

4.在命令提示符^{(Command Prompt)}中输入以下命令并^{(command and hit)} 回车^(Enter)：

bootrec.exe /FixMbr
bootrec.exe /FixBoot
bootrec.exe /RebuildBcd

5.每条命令执行成功后都会出现操作成功的消息。^{(operation completed successfully)}

6. 如果上述命令不起作用^{(t work)}或产生问题，请按顺序键入以下命令，并在每个命令后按 Enter ：^{(order and hit Enter)}

bcdedit /export c:\bcdbackup
c:
cd boot
attribbcd -s -h -r
ren c:\boot\bcd bcd.old
bootrec.exe /rebuildbcd

导出和重建过程在这些命令的帮助下进行，这些命令将修复 Windows 10 中的 MBR并修复与^{(repair the MBR in Windows 10)}主引导^{(Master boot)}记录相关的任何问题。

方法 3：使用 GParted Live^{(Method 3: Use GParted Live )}

Gparted Live是一个用于计算机的小型Linux 发行版。^{(Linux distribution)}Gparted Live允许您在 Windows 分区上工作，而无需在适当的 Windows 环境之外启动装置。要下载 Gparted Live，请单击此处^{(download the Gparted Live click here)}。

如果您的系统是 32 位系统，则选择i686.iso版本。如果您有 64 位系统，则选择amd64.iso版本。这两个版本都可以在上面提供的链接中找到。

根据您的系统要求^{(system requirement)}下载正确的版本后，您需要将光盘映像^{(disc image)}写入可启动设备。它可以是USB 闪存^{(USB flash)}驱动器、CD 或DVD。此外，此过程需要UNetbootin ，您可以^(UNetbootin)从此处下载^{(download from here)}。 需要UNetbootin^(UNetbootin)才能将Gparted Live的光盘映像写入可启动设备。

1.点击UNetbootin打开它。

2.在底部单击Diskimage。

3.选择沿同一行的三个点^{(three dots)}，然后从您的计算机浏览 ISO  。^{(browse the ISO )}

4.选择CD、DVD或USB驱动器的类型。^{( type whether a CD, DVD or a USB drive.)}

5.点击确定开始该过程。

完成该过程后，只需从计算机中取出可启动设备并关闭计算机即可。

现在在MBR^(MBR)损坏的系统中插入包含Gparted Live的可启动设备。启动系统，然后按住开机快捷键^{(boot shortcut key)}，根据系统不同可以是Delete键、F11键或F10 。^{(Delete key, F11 key or F10)}按照以下步骤使用Gparted Live。

1. Gparted加载后，键入sudofdisk –l打开^{(sudofdisk–l )}终端窗口^{(Terminal window)}，然后按 Enter。

2.再次通过键入test disk打开另一个终端窗口^{(Terminal window)}并选择No Log。

3.选择要修复的磁盘。^{(Select the disk that you want to repair.)}

4.选择分区类型^{(partition type)}，选择Intel/PC分区并回车。

5.选择分析^(Analyse)，然后选择快速搜索^{(Quick Search)}。

6.这是Gparted live如何分析与MBR相关的问题并可以修复Windows 10中的主引导记录（MBR）问题。^{(ix Master Boot Record (MBR) issues in Windows 10.)}

方法4：修复安装Windows 10^{(Method 4: Repair Install Windows 10)}

如果上述解决方案都不适合您，那么您可以确定您的硬盘是好的，但您可能会遇到MBR问题，因为操作系统^{(operating system)}或硬盘上的BCD 信息以某种方式被删除了。^{(BCD information)}好吧^(Well)，在这种情况下，您可以尝试修复^(Repair)安装Windows ，但如果这也失败了，那么剩下的唯一解决方案就是安装^(Windows)Windows的新副本（全新安装^{(Clean Install)}）。

推荐的：^{(Recommended:)}

• 修复无线适配器或接入点^{(Wireless Adapter or Access Point)}的问题^(Problem)
• 修复^(Fix)此Windows^{(Windows Is)}副本^(Copy)不是正版错误^{(Genuine Error)}
• 如何在 5 分钟内更改Gmail 密码^{(Gmail Password)}
• 如何在安全模式下启动 Outlook

我希望上述步骤能够帮助您修复或修复 Windows 10 中的主引导记录 (MBR)，^{(Fix or Repair Master Boot Record (MBR) in Windows 10)} 但如果您对本教程仍有任何疑问，请随时在评论部分^{(comment section)}提问。

Fix or Repair Master Boot Record (MBR) in Windows 10

Mаster Boot Record is аlso known as Master Partition Tablе which is the most impоrtant sector of the drive that is located at the beginning of a drive which identifieѕ the location of the OS and allows Windows 10 to boot. It is the first sector of the physical dіsk. The MBR contains a boot loader in which the operating systеm is installed with the drive’s logical partitions. If Windowѕ is not able to boot then you may need to fix or repair your Mastеr Boot Record (MΒR), as it might be corrupted.

There are various reasons why the MBR might get corrupted like viruses or malware attacks,  system reconfiguration, or the system did not shut down properly. A problem in MBR will get your system into trouble and your system will not boot up. So in order to deal with this problem, there are several ways through which we can fix this.

Fix or Repair Master Boot Record (MBR) in Windows 10

Method 1: Use Windows Automatic Repair

The first and foremost step that should be taken while facing Windows boot problem is performing the Automatic Repair on your system. Along with the MBR issue, it will handle any issue related to the Windows 10 boot problem. If there is an issue with your system related to boot then hard restart your system three times by pressing the power button. Your system will automatically start the repairing process or else you can use the Windows recovery or installation disc:

1.Insert the Windows 10 bootable installation DVD and restart your PC.

2.When prompted to Press any key to boot from CD or DVD, press any key to continue.

3.Select your language preferences, and click Next. Click Repair your computer in the bottom-left.

4.On choose an option screen, click Troubleshoot.

5.On Troubleshoot screen, click Advanced option.

6.On the Advanced options screen, click Automatic Repair or Startup Repair.

7.Wait til the Windows Automatic/Startup Repairs complete.

8.Restart and you have successfully Fix or Repair Master Boot Record (MBR) in Windows 10.

If your system responds to the Automatic Repair then it will give you the option to Restart the System otherwise it will show that Automatic Repair failed to fix the issue. In that case, you need to follow this guide: How to fix Automatic Repair couldn’t repair your PC

Method 2: Repair or Rebuild Master Boot Record (MBR)

If the Automatic Repair does not works then you can use the command prompt to repair the corrupted MBR by opening it from the Advanced option.

1.From the Choose an option screen, click on Troubleshoot.

2.Now click on Advanced options from the Troubleshoot screen.

3.From the Advanced options window click on Command Prompt.

4.In the Command Prompt type the following command and hit Enter:

bootrec.exe /FixMbr
bootrec.exe /FixBoot
bootrec.exe /RebuildBcd

5.After each command is executed successfully the message of operation completed successfully will come.

6.If the above commands don’t work or create a problem, then type the following commands in order and hit Enter after each one:

bcdedit /export c:\bcdbackup
c:
cd boot
attribbcd -s -h -r
ren c:\boot\bcd bcd.old
bootrec.exe /rebuildbcd

The export and rebuild process takes place with the help of these commands that will repair the MBR in Windows 10 and fix any issues related to the Master boot record.

Method 3: Use GParted Live

Gparted Live is a small Linux distribution for computers. Gparted Live allows you to work on the windows partitions without booting up means outside the proper windows environment. To download the Gparted Live click here.

If your system is a 32-bit system then choose the i686.iso version. If you have a 64-bit system then choose the amd64.iso version. Both versions are available in the link provided above.

After you have downloaded the correct version as per your system requirement then you need to write the disc image to the bootable device. Either it can be a USB flash drive, a CD or a DVD. Also, UNetbootin is required for this process which you can download from here. UNetbootin is required so that you can write the disc image of Gparted Live onto a bootable device.

1.Click on UNetbootin to open it.

2.In the bottom side click on Diskimage.

3.Select the three dots right along the same line and browse the ISO from your computer.

4.Select the type whether a CD, DVD or a USB drive.

5.Hit OK to start the process.

Once the process is done then simply take out the bootable device from the computer and shut down your computer.

Now insert the bootable device containing Gparted Live in the system which is having a corrupted MBR. Start the system, then keep pressing the boot shortcut key which can be the Delete key, F11 key or F10 depending on the system. Follow these steps to use the Gparted Live.

1.As soon as the Gparted loads, open a Terminal window by typing sudofdisk–l then hit enter.

2.Again open another Terminal window by typing test disk and select No Log.

3.Select the disk that you want to repair.

4.Select the partition type, select Intel/PC partition and hit enter.

5.Select Analyse and then Quick Search.

6.This is how Gparted live can analyze the problem related to MBR and can Fix Master Boot Record (MBR) issues in Windows 10.

Method 4: Repair Install Windows 10

If none of the above solutions work for you then you can be sure that your hard disk is fine but you may be facing issue with MBR because the operating system or the BCD information on the hard disk was somehow erased. Well, in this case, you can try to Repair install Windows but if this also fails then the only solution left is to Install a new copy of Windows (Clean Install).

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I hope the above steps were able to help you Fix or Repair Master Boot Record (MBR) in Windows 10 but if you still have any questions regarding this tutorial then feel free to ask them in the comment section.

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