{"id":73321,"date":"2023-08-28T06:00:00","date_gmt":"2023-08-28T10:00:00","guid":{"rendered":"https:\/\/helpdeskgeek.com\/?p=73321"},"modified":"2025-06-19T01:54:58","modified_gmt":"2025-06-19T05:54:58","slug":"how-to-fix-realtek-semiconductor-corp-extension-install-error-in-windows","status":"publish","type":"post","link":"https:\/\/helpdeskgeek.com\/how-to-fix-realtek-semiconductor-corp-extension-install-error-in-windows\/","title":{"rendered":"How to Fix \u201cRealtek Semiconductor Corp Extension Install Error\u201d in Windows"},"content":{"rendered":"\n

The Realtek 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 releases newer versions.\n<\/p>\n\n\n\n

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.\n<\/p>\n\n\n

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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.\n<\/p>\n\n\n\n

Reboot Windows Update\n<\/h2>\n\n\n\n

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<\/span> button causes the Realtek extension update to fail repeatedly, try rebooting Windows Update. To do that:\n<\/p>\n\n\n\n

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  1. Press Windows<\/span> + R<\/span> to open the Run box, type <\/span>services.msc<\/span>, and select OK<\/span>.\n<\/li>\n\n\n\n
  2. Scroll down the Services app and right-click Windows Update<\/span>.\n<\/li>\n\n\n\n
  3. Select Restart<\/span>.\n<\/li>\n<\/ol>\n\n\n
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    Restart Your PC\n<\/h2>\n\n\n\n

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

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    Pause and Retry the Update\n<\/h2>\n\n\n\n

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

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    1. Open the Settings app and select Windows Update<\/span>.\n<\/li>\n\n\n\n
    2. Select the Pause for 1 week<\/span> button.\n<\/li>\n<\/ol>\n\n\n
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      1. Restart your computer.\n<\/li>\n\n\n\n
      2. Go back to Settings<\/span> > Windows Update<\/span> and select Resume updates<\/span>. \n<\/li>\n\n\n\n
      3. Wait until Windows Update automatically searches for and installs any pending updates it detects.\n<\/li>\n<\/ol>\n\n\n\n

        Run the Windows Update Troubleshooter\n<\/h2>\n\n\n\n

        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.\n<\/p>\n\n\n\n

        To run the Windows Update troubleshooter:\n<\/p>\n\n\n\n

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        1. Open the Settings app and go to System<\/span> > Troubleshoot<\/span> (Windows 11) or <\/span>Update & Security<\/span> <\/span>> Troubleshooters<\/span> (Windows 10).\n<\/li>\n\n\n\n
        2. Select Other<\/span>\/Additional troubleshooters<\/span>.\n<\/li>\n\n\n\n
        3. Select Run<\/span> next to Windows Update<\/span>.\n<\/li>\n<\/ol>\n\n\n
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          Use the Show or Hide Updates Troubleshooter\n<\/h2>\n\n\n\n

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

          Download the Show or Hide Updates troubleshooter<\/a> from Microsoft, and then:\n<\/p>\n\n\n\n

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          1. Double-click the wushowhide.diagcab<\/span> file within your PC’s Downloads folder.\n<\/li>\n\n\n\n
          2. Select Next<\/span> on the Show or Hide Updates troubleshooter’s Welcome screen.\n<\/li>\n\n\n\n
          3. Choose the Hide updates<\/span> option.\n<\/li>\n<\/ol>\n\n\n
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            1. Hide the <\/span>Realtek Semiconductor Corp<\/span>. – Extension<\/span> update.\n<\/li>\n\n\n\n
            2. Open the Windows Setting app, go to Windows Update<\/span>, and select the Pause for 1 week<\/span> button.\n<\/li>\n\n\n\n
            3. Restart your computer.\n<\/li>\n\n\n\n
            4. Re-open the Show or Hide Updates troubleshooter and select Show hidden updates<\/span>.\n<\/li>\n\n\n\n
            5. Unhide the Realtek Semiconductor Corp<\/span>. – Extension<\/span> update.\n<\/li>\n\n\n\n
            6. Revisit Windows Update, select Resume updates<\/span>, and install updates for the Realtek Semiconductor Corp. Extension.\n<\/li>\n<\/ol>\n\n\n\n

              Reset the Windows Update Cache\n<\/h2>\n\n\n\n

              Windows maintains a cache of partially downloaded update data to speed things up. Errors and corrupt files within the cached folders\u2014SoftwareDistribution and catroot2\u2014can result in persistent Windows Update errors. \n<\/p>\n\n\n\n

              To reset the Windows Update cache:\n<\/p>\n\n\n\n

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