You have to enable them, they are not a default?

They are there to backup shared folders and OS folders that may be in use while a backup is being performed?

Do the shadow copies themselves get backed up?  And if so is this a default??

Thanks

Volume shadow copy allows your backup software to backup open files and folders.  It is on by default when you run msbackup.

Shadow copy of shared folders allows users to restore previous versions of files.  it is off by default.

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