Realtek Semiconductor Corp. Extension^{(Realtek Semiconductor Corp. Extension)}是一个软件组件，使 Windows 11/10 能够与Realtek的音频和网络设备进行交互。每当Realtek发布新版本 时，它都会通过Windows Update进行更新。

但是，如果Windows 更新^{(Windows Update)}突然开始重复显示“Realtek Semiconductor Corp. – 扩展安装错误 – 0x80070103”，该怎么办？尽管此失败的驱动程序更新不会影响您的操作系统使用 Realtek 硬件的能力，但不断看到该错误会令人不安，并会导致以后出现问题。

创建此故障排除指南是为了帮助您解决Realtek Semiconductor Corp. 扩展^{(Realtek Semiconductor Corp. Extension)}安装错误。您将学习多种解决方案，从基本的故障排除步骤到更高级的技术，以解决 Windows PC 上的此驱动程序更新问题。

重新启动 Windows 更新

在大多数情况下， Windows^(Windows)中的驱动程序更新问题只是由于临时故障所致，例如网络问题或Microsoft 的^(Microsoft)服务器端问题。如果点击“重试”^(Retry)按钮导致Realtek扩展更新反复失败，请尝试重新启动Windows Update。要做到这一点：

1. 按Windows + R打开“运行”^(Run)框，键入 services.msc，然后选择“确定”。
2. ^(Scroll)向下滚动“服务”^(Services)应用程序并右键单击“Windows 更新”^{(Windows Update)}。
3. 选择重新启动。

重新启动你的电脑

重新启动电脑是解决 Windows 大量潜在问题的^{(resolve loads of underlying issues with Windows)}快速方法。只需^(Just)打开“开始”^(Start)菜单，选择Power > Restart，然后在重新登录桌面后 重新运行Windows Update 。

暂停并重试更新

针对Windows^(Windows)中Realtek Semiconductor Corp 扩展^{(Realtek Semiconductor Corp Extension)}安装错误的另一个快速修复方法是暂停Windows 更新^{(Windows Update)}并重新启用它。就是这样：

1. 打开“设置”^(Settings)应用程序并选择“Windows 更新”^{(Windows Update)}。
2. 选择暂停^(Pause)1 周按钮。

1. 重启你的电脑。
2. 返回Settings > Windows Update并选择“恢复^(Resume)更新”。
3. 等待^(Wait)Windows 更新^{(Windows Update)}自动搜索并安装它检测到的任何挂起的更新 。

运行Windows 更新疑难解答^{(Windows Update Troubleshooter)}

Windows有一个内置的故障排除工具，旨在识别和修复与系统和驱动程序更新相关的问题。它可以提出潜在的修复建议，甚至自动应用它们。

要运行Windows 更新^{(Windows Update)}疑难解答：

1. 打开“设置”^(Settings)应用程序，然后转到System > Troubleshoot ( Windows 11 ) 或“更新^(Update)和Security > Troubleshooters ( Windows 10 )。
2. Select Other/Additional疑难解答。
3. 选择“Windows 更新”旁边的“运行”。

使用显示^(Show)或隐藏更新疑难解答^{(Hide Updates Troubleshooter)}

显示或隐藏更新^{(Hide Updates)}是另一种Microsoft疑难解答工具，可让您控制要安装的更新。论坛讨论^{(Forum chatter)}表明使用该工具隐藏、取消隐藏和重新安装Realtek Semiconductor Corp 扩展^{(Realtek Semiconductor Corp Extension)}更新是避免安装错误 0x80070103 的可行技术。

从 Microsoft下载显示或隐藏更新疑难解答^{(Show or Hide Updates troubleshooter)}，然后：

1. 双击^{(Double-click)}PC下载^(Downloads)文件夹中的 wushowhide.diagcab 文件。
2. ^{(Select Next)}在显示^(Show)或隐藏更新^{(Hide Updates)}疑难解答程序的欢迎屏幕上^(Welcome)选择下一步。
3. 选择隐藏更新选项。

1. 隐藏Realtek Semiconductor Corp. – 扩展^{(Realtek Semiconductor Corp. – Extension)}更新。
2. 打开Windows 设置^{(Windows Setting)}应用程序，转到Windows 更新^{(Windows Update)}，然后选择暂停^(Pause)1 周按钮。
3. 重启你的电脑。
4. 重新打开“显示^(Show)或隐藏更新”^{(Hide Updates)}疑难解答程序，然后选择“显示^(Show)隐藏的更新”。
5. 取消隐藏Realtek Semiconductor Corp. – 扩展^{(Realtek Semiconductor Corp. – Extension)}更新。
6. 重新访问 Windows Update^{(Revisit Windows Update)}，选择恢复^(Resume)更新，然后安装Realtek Semiconductor Corp. Extension的更新。

重置 Windows 更新缓存

Windows维护部分下载的更新数据的缓存以加快速度。缓存文件夹（SoftwareDistribution 和 catroot2）中的错误和损坏的文件可能会导致持续的Windows 更新^{(Windows Update)}错误。

要重置 Windows 更新缓存：

1. 打开“开始”^(Start)菜单，键入 cmd，然后选择“以管理员身份运行”^(Run)。
2. 在用户帐户控制^{(User Account Control)}( UAC ) 弹出窗口 中选择是。^(Yes)
3. 将下面的命令逐一复制并粘贴，然后按Enter执行它们：

• 网站 wuauserv
• 网络停止 cryptSvc
• 网络停止位
• 重命名 c:windowsSoftwareDistribution SoftwareDistribution.old
• 重命名 %systemroot% \System32\catroot2 catroot2.old
• 净启动 wuauserv
• 网络启动 cryptSvc
• 网络起始位

1. 退出命令提示符^{(Command Prompt)}控制台并重新启动计算机。
2. 转到Settings > Windows Update并检查Realtek Semiconductor Corp. 扩展^{(Realtek Semiconductor Corp. Extension)}安装错误是否再次出现。

修复损坏的系统文件

接下来，运行 Windows 的系统文件检查器^{(System File Checker)}( SFC ) 和部署映像服务^{(Deployment Image Servicing)}和管理^(Management)( DISM ) 命令行工具。SFC扫描并修复可能导致Windows 更新^{(Windows Update)}问题的损坏或丢失的系统文件，而DISM则提高系统稳定性。

要运行 SFC 和 DISM 工具^{(run the SFC and DISM tools)}：

1. 打开提升的命令提示符^{(Command Prompt)}控制台。
2. 依次执行下面的两个命令 - 这两个工具可能需要几分钟才能完成：

• 证监会/scannow
• DISM /online/cleanup-image /restorehealth

卸载并重新安装 Realtek^{(Reinstall Realtek)}设备

如果一切失败，请尝试在 Windows PC 上删除并重新安装Realtek音频或网络驱动程序。^(Realtek)此操作消除了导致更新错误的潜在驱动程序损坏问题。要做到这一点：

1. 右键单击^{(Right-click)}“开始”^(Start)按钮并选择“设备管理器”^{(Device Manager)}。
2. 展开音频^(Audio)设备和网络^(Network)适配器部分。
3. 右键单击任何列出的Realtek设备，然后选择卸载^(Uninstall)设备。

1. 重启你的电脑。
2. 重新访问设备管理器^{(Device Manager)}并在菜单栏上 选择Scan > Check硬件更改。^{(Hardware Changes)}
3. 重新启动Windows 更新^{(Windows Update)}并尝试安装所有待处理的Realtek更新。

安装^(Install)来自计算机制造商的更新^{(Computer Manufacturer)}

安装Realtek驱动程序和组件的另一种方法是从计算机制造商（ ^(Realtek)HP、Dell、ASUS等）获取相关驱动程序。与Windows Update相比，它并不方便，但它有助于解决反复出现的Realtek扩展更新错误，至少目前如此。

访问制造商的网站后，搜索您的电脑型号^{(PC model)}，下载最新的 Realtek 驱动程序并安装。然后，重新运行Windows 更新^{(Windows Update)}。

修复^{(Fix Error Code 0x80070103)}Windows 更新^{(Windows Update)}中的错误代码 0x80070103

Realtek Semiconductor Corp 扩展^{(Realtek Semiconductor Corp Extension)}安装错误并不容易解决，但通过上述修复应该可以使其最终消失。如果这些解决方案都不适合您，请等到下一个Realtek Semiconductor Corp 扩展^{(Realtek Semiconductor Corp Extension)}更新到达Windows 更新^{(Windows Update)}并安装它。或者，如果您愿意，请将 Windows 11^{(reset Windows 11)}或10 重置为默认设置^{(10 to default settings)}，再次从头开始设置所有内容，并检查是否会处理导致弹出错误的任何冲突。

How to Fix “Realtek Semiconductor Corp Extension Install Error” in Windows

The Realtеk Semiconductor Corp. Extension is a software component that enables Windows 11/10 to interact with Realtek’s audio and networking devices. It gets updated through Windows Update whenever Realtek releaseѕ newer versions.

But what if Windows Update suddenly begins to display “Realtek Semiconductor Corp. – Extension Install error – 0x80070103” on repeat? Although this failing driver update shouldn’t interfere with your operating system’s ability to use Realtek’s hardware, continually seeing the error is unsettling and leads to problems later.

This troubleshooting guide has been created to help you resolve the Realtek Semiconductor Corp. Extension install error. You’ll learn multiple solutions, from basic troubleshooting steps to more advanced techniques, to fix this driver update issue on your Windows PC.

Reboot Windows Update

In most cases, an issue with a driver update in Windows is simply due to a temporary glitch, such as a network issue or a server-side problem from Microsoft. If hitting the Retry button causes the Realtek extension update to fail repeatedly, try rebooting Windows Update. To do that:

1. Press Windows + R to open the Run box, type services.msc, and select OK.
2. Scroll down the Services app and right-click Windows Update.
3. Select Restart.

Restart Your PC

Restarting your PC is a quick and fast way to resolve loads of underlying issues with Windows. Just open the Start menu, select Power > Restart, and rerun Windows Update after you log back into the desktop.

Pause and Retry the Update

Another quick fix for the Realtek Semiconductor Corp Extension install error in Windows involves pausing Windows Update and re-enabling it. Here’s how:

1. Open the Settings app and select Windows Update.
2. Select the Pause for 1 week button.

1. Restart your computer.
2. Go back to Settings > Windows Update and select Resume updates.
3. Wait until Windows Update automatically searches for and installs any pending updates it detects.

Run the Windows Update Troubleshooter

Windows has a built-in troubleshooter tool designed to identify and fix issues related to system and driver updates. It can suggest potential fixes and even auto-apply them.

To run the Windows Update troubleshooter:

1. Open the Settings app and go to System > Troubleshoot (Windows 11) or Update & Security > Troubleshooters (Windows 10).
2. Select Other/Additional troubleshooters.
3. Select Run next to Windows Update.

Use the Show or Hide Updates Troubleshooter

Show or Hide Updates is an alternative Microsoft troubleshooter that gives you control over which updates to install. Forum chatter indicates using the tool to hide, unhide, and reinstall the Realtek Semiconductor Corp Extension update as a viable technique to avoid install error 0x80070103.

Download the Show or Hide Updates troubleshooter from Microsoft, and then:

1. Double-click the wushowhide.diagcab file within your PC’s Downloads folder.
2. Select Next on the Show or Hide Updates troubleshooter’s Welcome screen.
3. Choose the Hide updates option.

1. Hide the Realtek Semiconductor Corp. – Extension update.
2. Open the Windows Setting app, go to Windows Update, and select the Pause for 1 week button.
3. Restart your computer.
4. Re-open the Show or Hide Updates troubleshooter and select Show hidden updates.
5. Unhide the Realtek Semiconductor Corp. – Extension update.
6. Revisit Windows Update, select Resume updates, and install updates for the Realtek Semiconductor Corp. Extension.

Reset the Windows Update Cache

Windows maintains a cache of partially downloaded update data to speed things up. Errors and corrupt files within the cached folders—SoftwareDistribution and catroot2—can result in persistent Windows Update errors.

To reset the Windows Update cache:

1. Open the Start menu, type cmd, and select Run as administrator.
2. Select Yes on the User Account Control (UAC) pop-up.
3. Copy and paste the commands below one after the other and press Enter to execute them:

• net stop wuauserv
• net stop cryptSvc
• net stop bits
• rename c:\windows\SoftwareDistribution SoftwareDistribution.old
• rename %systemroot%\System32\catroot2 catroot2.old
• net start wuauserv
• net start cryptSvc
• net start bits

1. Exit the Command Prompt console and restart your computer.
2. Go to Settings > Windows Update and check if the Realtek Semiconductor Corp. Extension install error recurs.

Repair Corrupt System Files

Next, run Windows’s System File Checker (SFC) and Deployment Image Servicing and Management (DISM) command-line tools. SFC scans and fixes corrupt or missing system files that could lead to Windows Update issues, while DISM improves system stability.

To run the SFC and DISM tools:

1. Open an elevated Command Prompt console.
2. Execute the two commands below one after the other—both tools can take several minutes to complete:

• sfc /scannow
• DISM /online /cleanup-image /restorehealth

Uninstall and Reinstall Realtek Devices

If everything fails, try removing and reinstalling the Realtek audio or network drivers on your Windows PC. This action eliminates potential driver corruption issues leading to update errors. To do that:

1. Right-click the Start button and select Device Manager.
2. Expand the Audio devices and Network adapters sections.
3. Right-click any listed Realtek devices and select Uninstall device.

1. Restart your computer.
2. Revisit the Device Manager and select Scan > Check for Hardware Changes on the menu bar.
3. Relaunch Windows Update and attempt to install all pending Realtek updates.

Install Updates From Computer Manufacturer

An alternative method to install Realtek drivers and components is to get the relevant drivers from your computer manufacturer—HP, Dell, ASUS, etc. It’s not convenient compared to Windows Update, but it helps resolve recurring Realtek extension update errors, at least for now.

After visiting the manufacturer’s website, search for your PC model, download the latest Realtek drivers, and install them. Then, re-run Windows Update.

Fix Error Code 0x80070103 in Windows Update

The Realtek Semiconductor Corp Extension install error is not straightforward to troubleshoot, but working through the fixes above should make it go away eventually. If none of these solutions work for you, wait until the next Realtek Semiconductor Corp Extension update hits Windows Update and install that instead. Or, if you’re up for it, reset Windows 11 or 10 to default settings, set up everything from scratch again, and check if that deals with any conflicts causing the error to pop up.

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