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Windows 7: VSS event log errors

27 Mar 2011   #1

Windows 7 Pro x64
VSS event log errors


A few months back I started to find that my backups using Mirror Folder were not working using the ntfs change journals. Don't know if this is related to problem this morning though.

I have just tried to back up some files/folders with another application, Macrium Reflect which is now throwing me an error about not being able to create a volume snapshot with error code 0x8004230f.

I have checked the event log and found errors with VSS going back to 02/11/2010. Mainly writer errors until this morning.

This morning I got a different error having reformatted the external drive I was backing up too last night. A catastrophic failure error. See attached vss.txt from windows event log.

I have run 'vssadmin list writers' from command prompt which shows no errors.

I have run chkdsk /f on the reformatted drive which shows ok.

Am continuing to investigate but can anyone give me any ideas as to what I should try first?

Attached Files
File Type: txt vss.txt (2.1 KB, 14 views)
My System SpecsSystem Spec
27 Mar 2011   #2

Windows 7 Pro x64
Volume Shadow Copy & Truecrypt

Is this the problem?

Originally posted at

"The Windows Volume Shadow Copy Service is currently supported only for partitions within the key scope of system encryption (for example, a system partition encrypted by TrueCrypt or a non-system partition located on a system drive encrypted by TrueCrypt). Note: For other types of volumes, the Volume Shadow Copy Service is not supported because the documentation for the necessary API is not available."
...more specifically:

Originally posted by windows - Volume Shadow Copy based backup that works with TrueCrypt? - Super User...

"... because the documentation for the necessary API is available from Microsoft only under a non-disclosure agreement (which is impossible to comply with because TrueCrypt is open source)."
Looks like it's just not possible. Currently investigating how Mirror Folder handles external encrypted (non-system) drives with regard to VSS.
My System SpecsSystem Spec

 VSS event log errors

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