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window update issue

hakam dad 0 Reputation points
2026-05-28T12:45:46.8066667+00:00

i cannot download " 2019-04 Cumulative Update for Windows 10 Version 1709 for x64-based Systems (KB4493440)"

Windows for home | Windows 10 | Install and upgrade
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  1. David-M 115.2K Reputation points Independent Advisor
    2026-05-28T13:20:27.92+00:00

    Hi. I'm David, and I'm happy to help you.

    Windows 10 version 1709 is quite old. The most recent version is 22H2.

    To be able to assist you better, please clarify the following:

    • Do you have a third-party antivirus installed? If yes, which one?
    • Do you have any VPN software installed? (Even if it's not running at the moment) If yes, which one?

    Also. Check if your Windows 10 is actually version 1709. I've seen a case where Windows Update mistakenly tried to install an update for an older version.

    • Press "Windows + R", type winver, and click OK.

    If you prefer, share a screenshot. Use the shortcut "Windows + Shift + S" to use the screenshot tool.

    Be sure to censor your email address if it appears. The Microsoft Q&A is public.

    Looking forward to your reply.

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  2. AI answer

    2026-05-28T12:45:57.7566667+00:00

    For Windows 10 Version 1709, KB4493440 is a cumulative update that can be obtained either via Windows Update or as a standalone package.

    To install it, use one of these methods:

    1. Install via Windows Update
      1. Open Settings > Update & Security > Windows Update.
      2. Select Check for updates.
      3. Allow Windows Update to detect and download 2019-04 Cumulative Update for Windows 10 Version 1709 for x64-based Systems (KB4493440) and then restart if prompted.
    2. Install as a standalone package
      1. Before installing the cumulative update, install the latest Servicing Stack Update (SSU) for Windows 10 Version 1709 (for example, KB4485448) so the update process is more reliable.
      2. Go to the Microsoft Update Catalog entry for KB4493440 and download the package that matches the system (x64-based).
      3. Run the downloaded .msu file and follow the prompts to complete installation, then restart if required.

    If the download fails in Windows Update (for example, stuck or error codes):

    1. Check for connectivity or proxy/firewall issues that might block Windows Update URLs. If using a proxy or firewall, ensure it does not block Microsoft update URLs or perform SSL inspection or caching on Windows Update traffic, as this can prevent downloads.
    2. If a proxy is used (especially on devices like Surface Hub or similar setups), configure the proxy so it does not:
      • Perform SSL inspection on Windows Update traffic
      • Cache Windows Update content
      • Block partial file downloads (HTTP range headers)
    3. If error codes such as 0x80072EFD or 0x80072EFE appear in Windows Update logs, investigate:
      • 0x80072EFD: firewall or proxy blocking Microsoft download URLs
      • 0x80072EFE: TLS cipher issues affecting connections to Microsoft sites
    4. Review Windows Update logs under %windir%\logs\windowsupdate to identify specific error codes and then address the corresponding network or TLS configuration issues.

    If the device is managed by an organization, contact the administrator to verify that WSUS or other update management tools are correctly offering KB4493440 and that required URLs and protocols are allowed through the network.

    References:

    AI-generated content may be incorrect. Read our transparency notes for more information.

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