Windows 更新服务^{(Windows Update Service)}有助于将您的 Windows 11/10 系统更新到最新版本，这是必要的，因为它会推送操作系统所需的更新。该服务通过Service Manager进行管理。但是，一些用户报告了Windows 10中^{(Windows 10)}services.msc中缺少Windows 更新服务^{(Windows Update Service)}的情况。有时您可能会看到错误代码0x80070424。

缺少Windows 更新服务^{(Windows Update Service)}(0x80070424)

虽然基本原因是文件丢失，但用户报告说它显然是被恶意软件删除的。因此，建议在进行以下任何故障排除之前对您的系统执行完整的系统防病毒扫描：

1. 运行Windows 更新疑难解答^{(Windows Updates Troubleshooter)}
2. 运行 SFC 扫描
3. 使用 DISM^{(Use DISM)}修复Windows 更新^{(Windows Update)}文件
4. 重新注册或重置Windows 更新^{(Windows Updates)}组件
5. 使用注册表修复
6. 重置您的计算机
7. ^(Repair)使用外部媒体修复Windows 10

依次尝试以下解决方案以解决讨论中的问题。

1]运行^(Run)Windows更新^{(Windows Updates Troubleshooter)}疑难解答

Windows 更新疑难解答可以解决很多与 Windows 更新相关的问题^{(Windows Updates)}。如果您在讨论中遇到问题，这可能会有所帮助。运行Windows 更新疑难解答^{(Windows Updates Troubleshooter)}的过程如下：

单击“开始^(Start)”按钮，然后转到Settings> Updates and Security > Troubleshoot。

选择Windows 更新疑难解答^{(Windows Updates Troubleshooter)}并运行它。

2]运行SFC扫描

系统文件检查器^{(The System File Checker)}或sfc.exe是Microsoft Windows中的实用程序，位于 C:\Windows\System32文件夹中。此实用程序允许用户扫描和恢复损坏的Windows系统文件。由于问题的主要原因是文件丢失，您可以考虑在系统上运行SFC 扫描

3]使用 DISM^{(Use DISM)}修复Windows 更新^{(Windows Update)}文件

如果通用SFC扫描在您的系统上不起作用，您可以尝试Windows 更新特定的 DISM 扫描。使用以下命令：

DISM.exe /Online /Cleanup-image /Restorehealth

此过程将检查与Windows 更新^{(Windows Updates)}关联的丢失和损坏的文件并替换它们。

如果您的Windows 更新客户端已损坏^{(Windows Update client is already broken)}，系统将提示您使用正在运行的Windows安装作为修复源，或使用网络共享中的Windows并行文件夹作为文件源。

然后，您将需要运行以下命令：

DISM.exe /Online /Cleanup-Image /RestoreHealth /Source:C:\RepairSource\Windows /LimitAccess

在这里，您必须将C:\RepairSource\Windows占位符替换为修复源的位置。

该过程完成后，DISM将在^(DISM)%windir%/Logs/CBS/CBS.log中创建一个日志文件，并捕获该工具发现或修复的任何问题。

4]重新注册Windows更新^{(Windows Updates)}服务/重置Windows更新^{(Windows Updates)}组件

如果上述解决方案都没有带来任何结果，您可以考虑重置 Windows 更新组件^{(resetting the Windows Updates components)}。这是一个漫长而复杂的过程，但逐步完成时效果很好。通常，无论如何，此解决方案都应该解决Windows Updates的问题，但如果它没有帮助，您可能不得不考虑重置系统。

5]使用注册表修复

备份您的注册表^{(Back up your Registry)}并首先创建一个系统还原点，然后从我们的服务器下载此文件并提取其内容。它将包含一个Fix-WUS.reg文件。双击它以将其内容添加到您的Registry。

检查它是否解决了问题。如果是，很好；如果没有，请使用创建的备份恢复您的注册表或 Windows。^(Registry)

6]重置您的计算机

重置 Windows 系统^{(Resetting your Windows system)}有两个选项：第一个是删除系统上的所有文件和程序重新启动，第二个是将设置重置为默认值，同时保持文件完整。建议从保持文件完整的选项开始，如果这不起作用，您可以考虑在正确备份后从系统中擦除数据。

7]使用外部媒体Repair Windows 11/10

虽然重置Windows 11/10应该可以解决您的大部分问题，但如果这不起作用，您可以考虑repairing Windows 11/10 using external media。这需要带有Windows ISO的^{(Windows ISO)}DVD或USB驱动器。问题在于，与以前版本的Windows不同，您购买计算机时通常不会随附恢复媒体。您可以单独订购或自行创建。

我们希望本指南有助于解决您的问题。

Windows Update Service missing in Windows 11/10

The Windows Update Service helps in updating your Windows 11/10 system to the latest version and it is necessary because it pushes updates required by the operating system. The service is managed through the Service Manager. However, some users have reported a case where the Windows Update Service missing in services.msc in Windows 10. At times you may see error code 0x80070424.

Windows Update Service is missing (0x80070424)

While the basic cause is a missing file, a user reported that it was apparently removed by malware. Thus, it is advisable to perform a full system anti-virus scan on your system before proceeding with any troubleshooting mentioned below:

1. Run the Windows Updates Troubleshooter
2. Run an SFC scan
3. Use DISM to fix Windows Update files
4. Re-register or reset Windows Updates components
5. Use Registry fix
6. Reset your computer
7. Repair Windows 10 using external media

Try the following solutions sequentially to resolve the issue in discussion.

1] Run the Windows Updates Troubleshooter

The Windows Update Troubleshooter can resolve a lot of problems related to Windows Updates. It can be helpful if you encounter the problem in the discussion. The procedure to run the Windows Updates Troubleshooter is as follows:

Click on the Start button and go to Settings> Updates and Security > Troubleshoot.

Select the Windows Updates Troubleshooter and run it.

2] Run an SFC scan

The System File Checker or sfc.exe is a utility in Microsoft Windows located in C:\Windows\System32 folder. This utility allows users to scan for and restore corrupt Windows system files. Since the main cause of the issue is missing files, you can consider running an SFC scan on your system

3] Use DISM to fix Windows Update files

If a generic SFC scan doesn’t work on your system, you could try a Windows Updates specific DISM scan.using the following command:

DISM.exe /Online /Cleanup-image /Restorehealth

This procedure will check for missing and corrupt files associated with Windows Updates and replace them.

If your Windows Update client is already broken, you will be prompted to use a running Windows installation as the repair source or use a Windows side-by-side folder from a network share, as the source of the files.

You will then be required to run the following command instead:

DISM.exe /Online /Cleanup-Image /RestoreHealth /Source:C:\RepairSource\Windows /LimitAccess

Here you have to replace the C:\RepairSource\Windows placeholder with the location of your repair source.

Once the process is complete, DISM will create a log file in %windir%/Logs/CBS/CBS.log and capture any issues that the tool finds or fixes.

4] Re-register Windows Updates service/Reset Windows Updates components

If the above-mentioned solutions failed to bring any result, you could consider resetting the Windows Updates components. This is a long a complicated process but works well when done step by step. Usually, this solution should resolve the problem with Windows Updates, no matter what, but if it doesn’t help, you might have to consider resetting your system.

5] Use Registry Fix

Back up your Registry and also create a System Restore Point first and THEN download this file from our servers and extract its contents. It will contain a Fix-WUS.reg file. Double-click on it to add its contents to your Registry.

Check if it has solved the issue. If yes, good; if not, restore your Registry or your Windows using the created backups.

6] Reset your computer

Resetting your Windows system comes with two options: the first is to delete all files and programs on the system start new and the second is to reset the settings to default while keeping your files intact. It is advisable to start with the option to keep the files intact and if that doesn’t work, you can consider wiping data from your system after a proper backup.

7] Repair Windows 11/10 using external media

While resetting Windows 11/10 should clear most of your problems, if that doesn’t work, you could consider a repairing Windows 11/10 using external media. This would require a DVD or USB drive with a Windows ISO. The problem is that unlike previous versions of Windows, the recovery media usually doesn’t come with the package when you buy a computer. You could either order it separately or create it on your own.

We hope this guide helps in resolving your problem.

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