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VSS Permission Issue - Event ID 8194

    Question

  • I have a server 2012 cluster server that gets the following error a number of times every minute.  

    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: {957ea24a-fb64-4b24-98f6-26efe5481451}

    I have checked permissions on any third party vss writers and they are good.  I'm able to stop this error from occurring if I stop the Cryptographic Services service which seems to indicate a problem with one of windows built in VSS writers.  If I run a vssadmin list writers then all of them come back stable with no errors.  Any suggestions on how to fix this at this point would be greatly appreciated, thank you.

    Friday, November 15, 2013 11:05 PM

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