Windows 10 back-up to NAS (WD My Cloud) - Error message. RRS feed

  • Question

  • Not sure this is the correct forum but:

    Trying to back up windows 10 to a NAS and I get the following:

    Log Name:      Application

    Source:        Microsoft-Windows-Backup

    Date:          05-Jul-19 1:45:40 PM

    Event ID:      517

    Task Category: None

    Level:         Error


    User:          SYSTEM

    Computer:      Andrew-Laptop


    The backup operation that started at '‎2019‎-‎07‎-‎05T08:24:40.771966400Z' has failed with following error code '0x807800C5' (There was a failure in preparing the backup image of one of the volumes in the backup set.). Please review the event details for a solution, and then rerun the backup operation once the issue is resolved.

    Event Xml:

    <Event xmlns="">


        <Provider Name="Microsoft-Windows-Backup" Guid="{1DB28F2E-8F80-4027-8C5A-A11F7F10F62D}" />







        <TimeCreated SystemTime="2019-07-05T12:45:40.994379200Z" />


        <Correlation />

        <Execution ProcessID="10108" ThreadID="2964" />



        <Security UserID="S-1-5-18" />



        <Data Name="BackupTime">2019-07-05T08:24:40.771966400Z</Data>

        <Data Name="ErrorCode">0x807800c5</Data>

        <Data Name="ErrorMessage">%%2155348165</Data>



    Friday, July 5, 2019 2:08 PM

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