Windows 10: Volume Shadow Copy Service error

I've a list of errors in Event Viewer than I'm trying to deal with one-by-one.

This one is Event 8194, VSS

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 DataContext: Writer Class Id: {e8132975-6f93-4464-a53e-1050253ae220} Writer Name: System Writer Writer Instance ID: {05e2633c-95d4-422f-a153-d2152f7fba98}

============

I've scoured the web (which I normally do before posting here) and every site refers to Windows servers. As I'm using Windows 10, their steps/directions don't match my OS and I'm left dumbfounded.

If this is a 'server' item, why am I having to deal with it on Win10?

And what in the world is it telling me here?

TIA

:)

 

VSS Problems in Windows 10

C:\Windows\system32>vssadmin add shadowstorage /For=C: /On=C: /MaxSize=1.5GB

vssadmin 1.1 - Volume Shadow Copy Service administrative command-line tool

(C) Copyright 2001-2013 Microsoft Corp.

Error: Invalid command.

---- Commands Supported ----

Delete Shadows - Delete volume shadow copies

List Providers - List registered volume shadow copy providers

List Shadows - List existing volume shadow copies

List ShadowStorage - List volume shadow copy storage associations

List Volumes - List volumes eligible for shadow copies

List Writers - List subscribed volume shadow copy writers

Resize ShadowStorage - Resize a volume shadow copy storage association

C:\Windows\system32>

Windows version 1703 FYI.

 

Windows Image Backup Recovery

Level Date and Time Source Event ID Task Category

Error 1/21/2018 1:25:59 PM VSS 12291 None "Volume Shadow Copy Service error: Error on creating/using the COM+ Writers publisher interface: BackupShutdown [0x80042302, A Volume Shadow Copy Service component encountered an unexpected error.

Check the Application event log for more information.

]. "

Error 1/21/2018 1:25:59 PM VSS 8193 None "Volume Shadow Copy Service error: Unexpected error calling routine IMultiInterfaceEventControl::GetSubscriptions. hr = 0x80010108, The object invoked has disconnected from its clients.

. "

Error 1/16/2018 10:28:51 PM VSS 8193 None "Volume Shadow Copy Service error: Unexpected error calling routine QueryFullProcessImageNameW. hr = 0x80070006, The handle is invalid.

.
Operation:

Executing Asynchronous Operation
Context:

Current State: DoSnapshotSet"

Error 1/16/2018 5:40:45 AM VSS 8193 None "Volume Shadow Copy Service error: Unexpected error calling routine QueryFullProcessImageNameW. hr = 0x80070006, The handle is invalid.

.
Operation:

Executing Asynchronous Operation
Context:

Current State: DoSnapshotSet"

Error 1/16/2018 4:32:47 AM VSS 8193 None "Volume Shadow Copy Service error: Unexpected error calling routine QueryFullProcessImageNameW. hr = 0x80070006, The handle is invalid.

.
Operation:

Executing Asynchronous Operation
Context:

Current State: DoSnapshotSet"

Error 1/9/2018 12:53:15 AM VSS 8193 None "Volume Shadow Copy Service error: Unexpected error calling routine QueryFullProcessImageNameW. hr = 0x80070006, The handle is invalid.

.
Operation:

Executing Asynchronous Operation
Context:

Current State: DoSnapshotSet"

 

I couldn't find a guaranteed fix, but I did find a couple of interesting discussions on this topic (see comments at end of 2nd/TechNet item, please):
VSS Error: 8194 - Windows Events - Spiceworks
Event ID 8194 — Volume Shadow Copy Service Operations
HTH,
--Ed--

 

Yes, I've seen these. Note that they refer to the Windows 2008 Server. That's why I was wondering why this would be a Win10 issue. Thx.

 

VSS is used amongst other things to allow the creation of restore points (on windows client editions too - not just server). It is also used to make snapshots that are used by backup and imaging programs. This is so you can backup the system in a consistent state while you carry on using it.

If you install Macrium Reflect Free it has an option to fix VSS errors which is handy as they can be quite fiddly to resolve otherwise.

You can just click on "Other tasks" > "Fix VSS Problems"

 

Well that's cool.

I happen to have a paid copy of that application on my system as it is my main backup program.

So I found it right where you showed it. It did something, though I don't know what.

Now I'll just keep an eye on it to see if that error pops up again in the Events Log.

Thanks!

 

I can't find exactly what it does. Their documentation only says this

Presumably it is this program that is called under that option. You could ask them if you were interested - I only use free version so I can't access their support.

That is the best idea. I had a quick look for IVssWriterCallback errors as you mentioned in first post. It seems they could be fixed by uninstalling McAfee or changing the langauge of non Unicode programs to english as well as the more obvious changing permissions which the error seems to suggest. No clear pattern anyway.

If it doesn't fix the error there is lots of information and suggestions here
Troubleshooting Microsoft VSS errors - KnowledgeBase v7 - Macrium Reflect Knowledgebase - KnowledgeBase v7 - Macrium Reflect Knowledgebase

Macrium (which uses VSS) will fail and report the VSS error if it is important to it. If the backup works then the specific error is not important. Note VSS is only used for the backup stage - not the restore - so if the backup doesn't stop with an error you are OK.

 

Echo/confirm what Lx07 said -- namely that VSS is a service that runs on all modern versions of Windows, starting with Vista forward. The funny thing about TechNet is that while you can find all kinds of useful documentation, they don't always tell you that some things work on both Windows Server and Desktop OSes. VSS is one of those, as you're finding out. Do please let us know if the Macrium fix-it helps your situation: as a loyal user of the free version, this is something that would be good to know! Thanks!
--Ed--