Files and folders that are not backed up when the Ntbackup.exe tool is used in Windows Server 2003, Windows XP, and Windows 2000

Important This article contains information about how to modify the registry. Make sure to back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For more information about how to back up, restore, and modify the registry, click the following article number to view the article in the Microsoft Knowledge Base:
256986 Description of the Microsoft Windows registry


This article lists the files and folders that Ntbackup.exe excludes during backup and restore operations. The file exclusions listed in this article also apply to backups that use the Volume Shadow Copy Service (VSS).

More Information

Microsoft Windows operating systems maintain a list of files and folders that are excluded when you backup and restore files by using the Ntbackup.exe tool and other Windows-compatible backup programs.

Windows stores this information in the following registry keys:

Note The registry values shown in this article are a sample from one computer and may differ from what you might see on your computer depending on your configuration.
The default values and value data for the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\BackupRestore\FilesNotToBackup registry key is listed in the following table.

The default values and value data for the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\BackupRestore\KeysNotToRestore registry key are listed in the following table.

The file exclusions listed in this article also apply when you are using Volume Shadow Copy Service. In this scenario, the requestor, such as NTBACKUP.EXE, passes a list of files and folders it will backup or restore, subject to any exclusions by the registry keys listed in this article.

ID d'article : 233427 - Dernière mise à jour : 7 janv. 2008 - Révision : 1