如果您在启动 Windows 10、Windows 8.1 或 Windows 8 计算机时收到“您的 PC 需要修复^{(Your PC needs to be repaired)}”错误消息，那么这篇文章或许可以帮助您解决问题。

所需设备未连接或无法访问

您要尝试的第一件事是启动高级启动选项并尝试刷新您的 PC^{(Refresh your PC)}。但是，如果您这样做，您很可能会收到以下消息：

安装Windows^(Windows)的驱动器被锁定。解锁驱动器并重试

如果您尝试重置您的 PC^{(Reset your PC)} ，您将看到以下消息：

无法重置您的电脑。缺少所需的驱动器分区

此错误的原因通常是损坏的MBR或BCD文件。要解决此问题，您可能需要尝试一些方法。

如果能正常登录就好了；否则，您必须 启动进入安全模式^{(boot into Safe Mode)}，进入 高级启动选项屏幕^{(Advanced Startup options screen)}，或 使用安装媒体启动^{(use the Installation Media to boot)} 才能执行这些说明。

1]通过WinRE屏幕运行检查磁盘

引导^(Boot)进入高级引导^{(Advanced Boot)} 选项^(Options)。在WinRE屏幕中，选择Troubleshoot > Advanced选项 >命令提示符^{(Command Prompt)}。使用 CMD 运行检查磁盘^{(Run Check Disk using CMD)}。您可以使用chkdsk /r命令。

2]运行系统文件检查器

如果启动所需的系统文件已损坏，运行系统文件检查器 可能会对您有所帮助。

3]更改活动分区

您可能需要使用diskpart更改活动分区。活动分区是您的BIOS检测到的将启动您的计算机的分区。

请务必注意，错误地更改活动分区可能会使您的计算机无法启动。所以不要误将分区标记为活动，如果它不包含您的操作系统的 NTDLR 加载程序。^{(It is important to note that changing Active Partition wrongly may make your computer unbootable. So do not by mistake, mark a partition as Active, if it does not contain the NTDLR loader for your operating system.)}

为此，请输入以下命令：

diskpart

list disk

现在选择磁盘——它通常是磁盘 0——^{(Disk 0)}并将其设置为活动^(Active)磁盘。假设它是Disk 0，命令变为：

select disk 0

现在使用以下命令列出分区：

list partition

假设您的分区号为0，则命令变为

select partition 0

要使其成为活动^(Active)分区，请键入以下内容并按 Enter：

active

退出磁盘部分。

4]修复主引导记录

修复主引导记录^{(Repair Master Boot Record)}。这是解决启动问题的有效故障排除步骤之一，并有望帮助您解决问题。

更新：^(Update:) 请^(Please)参阅下面的 boozi 评论。

有朝一日可能对您有所帮助的其他一些链接：^{(Some other links that may help you someday:)}

1. 如何将 MBR 转换为 GPT 磁盘^{(How to Convert MBR to GPT Disk)}
2. Windows 无法启动；自动修复、刷新、重置 PC 也失败^{(Windows fails to boot; Automatic Repair, Refresh, Reset PC also fail)}
3. 找不到运作系统^{(Operating System Not Found)}
4. Bootmgr 丢失。

The drive where Windows is installed is locked Windows 10

If when you start your Windows 10, Windows 8.1 оr Windows 8 computer, you receive a Your PC needs to be repaired error message, then Then this post may be able to help you resolve the issue.

A required device isn’t connected or can’t be accessed

The first thing you want to try is to boot into Advanced Boot options and try to Refresh your PC. But if you do this, you are in all likelihood expected to receive the following message:

The drive where Windows is installed is locked. Unlock the drive and try again

If you try to Reset your PC you will see the following message:

Unable to reset your PC. A required drive partition is missing

The cause for this error is normally a corrupt MBR or BCD file. To resolve this issue, there are a few things you may want to try.

If you can log in normally, good; else you will have to boot into Safe Mode, enter Advanced Startup options screen, or use the Installation Media to boot to be able to carry out these instructions.

1] Run Check Disk via WinRE screen

Boot into Advanced Boot Options. From the WinRE screen, select Troubleshoot > Advanced options > Command Prompt. Run Check Disk using CMD. You may use the chkdsk /r command.

2] Run System File Checker

If a system file required for booting up has become corrupted, running System File Checker may help you.

3] Change the active partition

You may be required to change the active partition using diskpart. An Active partition is the one that your BIOS detects is the one that will start your computer.

It is important to note that changing Active Partition wrongly may make your computer unbootable. So do not by mistake, mark a partition as Active, if it does not contain the NTDLR loader for your operating system.

To do this, enter the following commands:

diskpart

list disk

Now select the disk – it will typically be Disk 0 – and set it as the Active disk. Assuming it is Disk 0, the commands become:

select disk 0

Now list the partitions using:

list partition

Assuming your partition number is 0, the command becomes

select partition 0

To make it the Active partition, type the following and hit Enter:

active

Exit diskpart.

4] Repair Master Boot Record

Repair Master Boot Record. It is one of the effective troubleshooting steps, to fix boot issues, and will hopefully help you fix the problem.

Update: Please see boozi‘s comment too, below.

Some other links that may help you someday:

1. How to Convert MBR to GPT Disk
2. Windows fails to boot; Automatic Repair, Refresh, Reset PC also fail
3. Operating System Not Found
4. Bootmgr is Missing.

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