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

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).

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.

Value	Value Data
Client Side Cache	%SystemRoot%\csc\* /s
ComPlus	%SystemRoot%\Registration\*.crmlog /s
Internet Explorer	%UserProfile%\index.dat /s
Memory Page File	\Pagefile.sys
MS Distributed Transaction	%SYSTEMROOT%\System32\DTCLog\MSDTC.LOG
NtFrs	%systemroot%\ntfrs\jet\* /s %SystemRoot%\debug\NtFrs* %systemroot%\sysvol\domain\DO_NOT_REMOVE_NtFrs_PreInstall_Directory\* /s %systemroot%\sysvol\domain\NtFrs_PreExisting___See_EventLog\* /s %systemroot%\sysvol\staging\domain\NTFRS_*
Power Management	\hiberfil.sys
Temporary Files	%TEMP%\* /s

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

Value	Value Data
Active Directory Restore	CurrentControlSet\Services\NTDS\Restore In Progress\ CurrentControlSet\Services\NTDS\Parameters\New Database GUID
Fault Tolerance	Disk\
Installed Services	CurrentControlSet\Services\*
LDM Boot Information	CurrentControlSet\Services\dmio\boot info\
Mount Manager	MountedDevices\
Pending Rename Operations	CurrentControlSet\Control\Session Manager\PendingFileRenameOperations
Plug and Play	CurrentControlSet\Enum\ CurrentControlSet\Control\CriticalDeviceDatabase\
Session Manager	CurrentControlSet\Control\Session
Windows Setup	Setup\SystemPartition

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.