Volume Shadow Copy Service error: Unexpected error querying for the IVssWriterCallback interface. hr = 0x80070005, Access is denied.

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Volume Shadow Copy Service error: Unexpected error querying for the IVssWriterCallback interface. hr = 0x80070005, Access is denied.

 

Hi all,

 

 

I got me an Acer Iconica w3..... New little 8 inch tablet.

 

Setup like any other machine. Connected to my Windows home server or Windows Server 2012 essentials. Tried to run a backup using the server connector. Backup failed with the subject VSS error in the application logs. I also tried

the built in backup Windows 8 backup under control panel labeled Windows 7 File history system image. No dice with either.

 

 

Investigating the error, I found some tests to confirm permission - all passed. Trusting the error message to be accurate (permissions problem) I see direction to make sure the VSS service is started (I started and changed to automatic) and to grant

explicit access in the registry. I also see suggestions to grant the Network Service explicit rights to the computer using dcomcnfg. No dice.

 

I've flattened and re-loaded. Actually on a second machine with a newer image from Acer (first machine had a bad microSD socket that would not eject). 2nd machine exhibits the same symptoms - failing to backup

 

Compared settings to another Windows 8 machine - VSS service by default is manual and no explicit permission grants were in place. e.g. changes above were unnecessary but made just the same as part of trouble-shooting

 

Clearly there is something more fundamental that I'm missing? All other machines are running Windows 8 Pro or Enterprise. This machine is running Windows 8 basic hence the built in backup can't image to a network but should be able to image to

an external drive and/or the server connector should still be able to backup - correct???

 

Suggestions as to next steps?

 

 

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