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Thread: Windows Update Unknown error 80070490 on Windows 7

  1. #1
    FGenova is offline New Member
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    Feb 2018
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    Default Windows Update Unknown error 80070490 on Windows 7

    Dear friends:

    My computer is an old XP passed to Windows 7 :



    The system actualization is trying to actualize the following , always with sing : error and trying again:

    KB2984976
    KB27266535
    KB2640148
    KB3147071

    At the end it sorts : Code 80070490 Unknown error.

    What could I do ?

  2. #2
    HappyAndyK's Avatar
    HappyAndyK is offline Site Administrator
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    Since you are running Windows 7, after running the System File Checker, you should use the System Update Readiness Tool to repair Windows Update.

    Details here: Windows Update error 0x80070490 while updating Windows 10/8/7

  3. #3
    FGenova is offline New Member
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    Thank you Andy.
    In case I cannot find the "System Update Readiness Tool ". Where can I find It ?

    Best regards

  4. #4
    FGenova is offline New Member
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    Thank you Andy; I found the link in blue. Sorry.
    Best regards and thanks for your support.
    FG
    HappyAndyK likes this.

  5. #5
    Lewis-H is offline Windows Enthusiast
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    Windows Vista/7 update error 80070490. If you keep receiving this update error, it means that file or setting in the CBS (Component Based Servicing) manifest is corrupted or damaged. The role CBS manifest is helping computer identify all kinds of components and settings in Windows.

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