Windows Home Server Backup fails on Windows 10 because of VSS permissions

Nick Asa 1 Reputation point
2021-03-07T05:12:45.367+00:00

I get this error in the event log for every disk/volume that I'm trying to backup from my Windows 10 machine using Windows Home Server software. I've uninstalled and reinstalled the connector software to no avail. I don't know what to do from here.

Volume Shadow Copy Service error: Unexpected error querying for the IVssWriterCallback interface. hr = 0x80070005, Access is denied.. This is often caused by incorrect security settings in either the writer or requestor process.

Operation:
Gathering Writer Data

Context:
Writer Class Id: {e8132975-6f93-4464-a53e-1050253ae220}
Writer Name: System Writer
Writer Instance ID: {efda0a9a-029b-450c-8abd-59c96227298e}

Windows Home Server 2011
Windows Home Server 2011
A Microsoft server product that is designed to connect personal computers, digital devices, and printers in the home. Windows Home Server centralizes storage and access of images, music, personal documents and video.
52 questions
Windows 10
Windows 10
A Microsoft operating system that runs on personal computers and tablets.
11,146 questions
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  1. Carl Fan 6,836 Reputation points
    2021-03-08T08:44:40.277+00:00

    Hi,
    Firstly. I suggest that you need to check the account permission under Registry and DCOM. Please follow the steps below:
    https://www.ryadel.com/en/volume-shadow-copy-service-error-unexpected-error-querying-for-the-ivsswritercallback-interface-how-to-fix-that/
    Hope this helps and please help to accept as Answer if the response is useful.
    If the issue still insists, I suggest that you run Windows Update to check if any security update you could find. Try to install them. Then reboot to back up.
    Hope this helps and please help to accept as Answer if the response is useful.
    Best Regards,
    Carl

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