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Shadow Copy (also known as Volume Snapshot Service, [1] Volume Shadow Copy Service [2] or VSS [2]) is a technology included in Microsoft Windows that can create backup copies or snapshots of computer files or volumes, even when they are in use. It is implemented as a Windows service called the Volume Shadow Copy service.
Configuration user interface – In Windows XP, there is a graphical slider to configure the amount of disk space allotted to System Restore. In Windows Vista, the slider to configure the disk space is not available. Using the command-line tool Vssadmin.exe or by editing the appropriate registry key, [12] [13] the space reserved can be adjusted.
Continuous data protection differs from RAID, replication, or mirroring in that these technologies only protect one copy of the data (the most recent). If data becomes corrupted in a way that is not immediately detected, these technologies simply protect the corrupted data with no way to restore an uncorrupted version.
Windows Vista also introduced persistent shadow copies for use with System Restore and Previous Versions features. Persistent shadow copies, however, are deleted when an older operating system mounts that NTFS volume. This happens because the older operating system does not understand the newer format of persistent shadow copies. [28]
As such, System Restore can use shadow copies that Backup and Restore created during a full system backup. [14] As mentioned above, Backup and Restore is merely a frontend. Windows ships with an alternative frontend for Windows Backup, the WBAdmin command-line utility. Only a member of the Administrators groups or the Backup Operators group can ...
Windows Insider: Windows 10 Version 1507 Windows 10 Version 1511 Feedback Hub: Windows Help and Support Online and offline reference manual for troubleshooting. Utility Windows Me: Windows 8.1: Microsoft Tips or Get Started: HyperTerminal: Communication utility based on a low end version of HyperACCESS: Communication Windows 95: Windows XP ...
Robocopy is a command-line file transfer utility for Microsoft Windows.Robocopy is functionally more comprehensive than the COPY command and XCOPY, but replaces neither.. Created by Kevin Allen [2] and first released as part of the Windows NT 4.0 Resource Kit, it has been a standard feature of Windows since Windows Vista and Windows Serv
XCOPY will not copy open files. Any process may open files for exclusive read access by withholding the FILE_SHARE_READ [16] XCOPY does not support the Windows Volume Shadow Copy service which effectively allows processes to have access to open files, so it is not useful for backing up live operating system volumes.