可能会有停电后的情况；您的Windows系统将无法启动。在这种情况下，任何启动系统的尝试只会将您带到加载屏幕。
Windows计算机在断电后无法启动
如果您的 Windows 11/10 计算机在断电后无法启动，这里有一些解决方案可能会帮助您解决问题。
- 修复 BCD
- 运行启动修复
- (Repair)使用安装(Installation)媒体修复您的计算机。(Computer)
1]修复BCD
首先想到的是在安全模式下启动Windows 10 ，但它可能会将您带到显示消息“(Windows 10 in Safe Mode)您的 PC 需要维修”的蓝屏。突然断电有时可能会损坏系统文件，有时还会损坏系统保留分区，如引导配置数据 (BCD)。您可能希望从应急磁盘启动以解决系统问题，但BCD损坏可能会导致启动Windows系统出现问题。
2]运行启动修复
如果您可以到达高级启动(Advanced Startup) 选项(Options) 屏幕(Screen)，您应该运行启动修复(Startup Repair)。那应该做的工作！
一种
如果这没有帮助，您可以选择Command Prompt。使用CMD，您可以访问更高级的内置Windows工具。您可以尝试以下几项操作，具体取决于您收到的错误代码。查看哪些适用于您的系统并执行它们：
- 运行 System File Checker以替换损坏的Windows系统文件或驱动程序
- 运行 DISM 工具来修复 Windows 映像(repair Windows image)。
- 使用命令提示符重建您的 MBR，(rebuild your MBR,)使用内置的bootrec 工具(bootrec tool)。
3]使用安装(Installation)媒体修复您的计算机(Repair Your Computer)
如果没有任何帮助，您可能必须从Windows 安装(Windows Installation)媒体启动。将包含Windows(Windows)安装文件的Windows 10 USB闪存驱动器连接到USB端口，然后按电源(Power)按钮
按 Enter(Press Enter)或任意键从USB设备启动。
选择安装屏幕窗口左下方的“修复您的计算机”选项。(Repair Your Computer)
高级启动选项(Advanced Startup Options)将在新窗口中启动。在Advanced Startup Options中，单击(Click)打开命令(Command Prompt)提示符(Command Prompt)窗口的命令提示符。
键入以下命令并按Enter 键(Enter)，它会扫描所有磁盘以查找 Windows 安装。
bootrec/rebuildbcd
如果您在命令行中看到以下消息，请输入(Enter “)“Yes”或“Y”将安装添加到引导列表以成功完成操作。
Total identified Windows installations: 1.
Add installation to boot list? Yes/No/All:
已识别的Windows(Windows)安装总数：0
如果您在命令行中看到以下消息，则需要手动删除BCD存储，然后再次尝试重建。
Total identified Windows installations: 0
The operation completed successfully
如果您之前备份了BCD 存储(BCD Store)，那么您还有另一个选择。您可以恢复那个好的BCD文件。为此，请键入以下命令并按Enter 键(Enter)以完成操作-
bcdedit /import f:\01.bcd
这将在D 驱动器(D Drive)上恢复名为01.bcd的(01.bcd)BCD文件。因此，您需要根据情况选择驱动器号和(Drive)BCD文件的名称。
如前所述，突然的意外断电可能会损坏窗口文件，因此强烈建议在命令提示符下运行系统文件检查器以修复损坏的 Windows 文件。SFC /scannow扫描系统文件并帮助将所有损坏的版本替换为Microsoft版本。按照以下步骤使用系统文件检查器(System File Checker)修复损坏的窗口文件。
重新启动系统，看看您的计算机是否正常启动。
希望(Hope)这些解决方案可以帮助您解决问题。
意外中断也可能对主板、内存和电源中的系统外围设备造成重大损坏，因此强烈建议安装UPS以保护您的系统免受未来灾难的影响。
更多建议(More suggestions here)：Windows PC 无法启动或启动。
Windows computer won't boot after power outage
There might be an instance wherein after power outages; your Windows system won’t be able to boоt. In thіs caѕe, any attempt made to boot the system would take yоu to a loading screen only.
Windows computer won’t boot after power outage
If your Windows 11/10 computer won’t boot after a power outage, here are some solutions that might help you to fix the problem.
- Repair BCD
- Run Startup Repair
- Repair Your Computer using Installation media.
1] Repair BCD
Starting Windows 10 in Safe Mode would come first to the mind, but it may take you to the blue screen displaying the message “Your PC needs to be repaired“. The sudden power failure sometimes may corrupt the system files and also sometimes damage the system reserved partitions like Boot Configuration Data (BCD). You may want to boot from a Rescue Disk in order to resolve the problem with the system, but damage to BCD may cause trouble booting the Windows system.
2] Run Startup Repair
If you can reach the Advanced Startup Options Screen, you should run Startup Repair. That should do the job!
If that does not help, you may select Command Prompt. Using the CMD, you can access the more advanced built-in Windows tools. Here are a few things you can try, depending on the error code you receive. See which applies to your system and carry them out:
- Run System File Checker to replace the corrupted Windows system files or Drivers
- Run DISM tool to repair Windows image.
- Use the Command prompt to rebuild your MBR, using the built-in bootrec tool.
3] Repair Your Computer using Installation media
If nothing helps, you may have to boot from Windows Installation media. Connect the Windows 10 USB flash drive containing Windows installation files in the USB port and press the Power button
Press Enter or any key to boot from the USB device.
Select “Repair Your Computer “ option at the bottom left of the install screen window.
Advanced Startup Options will start in a new window. In the Advanced Startup Options, Click on Command Prompt which opens the Command Prompt window.
Type the following command and hit Enter which scans all the disks for windows installations.
bootrec/rebuildbcd
If you see the following message on the command line, Enter “Yes” or ‘Y’ to add the installation to the boot list to complete the operation successfully.
Total identified Windows installations: 1.
Add installation to boot list? Yes/No/All:
Total identified Windows installations: 0
If you see the following message on the command line, you need to remove BCD store manually and then try to rebuild again.
Total identified Windows installations: 0
The operation completed successfully
If you had earlier backed up your BCD Store, then you have another option. You may restore that good BCD file. To do that, type the following command and hit Enter to complete the operation-
bcdedit /import f:\01.bcd
This will restore your BCD file named as 01.bcd on your D Drive. So you need to select the Drive letter and the name of your BCD file as the case may be.
As mentioned earlier, the sudden unexpected power outages could damage the window files, so it is highly recommended to run the System File Checker as well, at the command prompt in order to repair the corrupted windows files. SFC /scannow scans the system files and helps to replace all the corrupted versions with the Microsoft versions. Follow these steps to repair the damaged window files using System File Checker.
Restart the system and see if your computer boots normally.
Hope these solutions would help you to resolve the issue.
Unexpected outages can also cause major damage to system peripherals in the motherboard, memory, and power supply, so it is highly recommended to install UPS to save your system from future disaster.
More suggestions here: Windows PC will not boot up or start.
