ServerBackup – Error …$Extend…$RmMetaData… Access denied

The issue will only happen if you backup a NTFS drive with file level backup (for example, some files are excluded so block level backup is deactivated). Those files are NTFS internal metadata which cannot be accessed by other processes.

The workaround is to either backup the whole volume (i.e. do a block level backup), or exclude the $RmMetaData from being backed up by:

o 2. HKLM\SYSTEM\CurrentControlSet\Control\BackupRestore\FilesNotToBackup o

1. Multi-String Value named IgnoreNTFS with data \$Extend\* /s under FilesNotToBackup o

2. Restart the server.

A KB is published: http://social.technet.microsoft.com/wiki/contents/articles/11872.server-backup-known-issues-and-resolutions-en-us.aspx