"The filename, directory name, or volume label syntax is incorrect" error when you attach a new drive in the backup schedule in Windows Server 2012

Applies to: Windows Server 2012 DatacenterWindows Server 2012 DatacenterWindows Server 2012 Essentials


Consider the following scenario:
  • You have a computer that is running Windows Server 2012.
  • You use the Windows Server Backup utility to back up files to an external drive.
  • You remove the external drive after the backup is complete.
  • You try to attach a second drive in the backup schedule. For example, you attach another external drive, and then you run the following command:
    WBADMIN ENABLE BACKUP -addtarget: {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx} 
In this scenario, you receive an error message that resembles the following:
The filename, directory name, or volume label syntax is incorrect.

Note The {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx} placeholder represents the disk identifier number. You can run the wbadmin get disks command to check the disk identifier number, and the output resembles the following:
Disk name: xxxxxxxxxxx
Disk number: x
Disk identifier: {xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx}
Total space: xxx.xx GB
Used space: xxx.xx GB


Hotfix information

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that described in this article. Apply this hotfix only to systems that are experiencing the problem described in this article. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix Download Available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website: Note The "Hotfix Download Available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.


To apply this hotfix, you must be running Windows Server 2012.

Registry information

To use the hotfix in this package, you do not have to make any changes to the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

More Information

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional file information

Additional file information for Windows Server 2012

Additional files for all supported x64-based versions of Windows Server 2012
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File size707
Date (UTC)03-Jun-2013
Time (UTC)08:24
PlatformNot applicable
File nameAmd64_microsoft-windows-blb-engine-main_31bf3856ad364e35_6.2.9200.20733_none_3d6a4f2ba27a1103.manifest
File versionNot applicable
File size8,271
Date (UTC)01-Jun-2013
Time (UTC)12:29
PlatformNot applicable