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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.

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