Remember that File History keeps a track of changed files by appending the timestamp in a file name.ĬASE 2 - When the backup drive is not connected or network drive is offline Therefore, it is certainly a space eating process. If the external/network drive is available, it backs up the new copies of modified files to the given drive unlike saving only the modified content in case of differential backup. Two working possibilities when File History is ON are discussed below.ĬASE 1 - When the backup drive is available File History service (fhsvc) runs in the background, waking up at defined time interval and checks for a USN change. A user has different options to set backup frequency between every 10 minutes to daily (i.e. If the external device is connected and the File History option is turned on, it will check the files after every 3600 seconds (1 hour) by default. A user can manually turn ON and OFF the File History backup at will. Files are backed up on an external media or a network share folder. This way it maintains a log of files along with their versions. It has a database of files for example, MyABC.doc under Documents would be saved as: Note that the File History keeps a track of changed files by appending the timestamp in a file name. It does not contain file content or path. Information that USN journal holds are USN date, MFT entry, Sequence Number, parent MFT, USN number, attributes, filename and type change.
PRODISCOVER BASIC 64 BIT WINDOWS 8
Though it is an old feature of Windows file-system but the idea of using it to backup is new and introduced in Windows 8 in the form of File History. It is a way to record changes on NTFS volumes.
The idea behind backing up through File History is to trace USN journal. File History appears as fhsvc in the Task Manager and some associated dlls are fhcfg.dll, fhcpl.dll and fhsvcctl.dll. In addition, at any time, user can manually run the service.
PRODISCOVER BASIC 64 BIT PC
According to Microsoft, “File History doesn’t back up files on your PC that you have synced with SkyDrive, even if they’re in folders that File History backs up.” Once turned on, File History automatically backs up the folders after every hour by default however this interval can be changed easily in advanced settings. Notice that File History is unable to backup your folders synced with cloud storage service(s). There is an option to exclude any folder(s) that users don’t want to backup.
File History backs up files of the Libraries, Desktop, Contacts and Favorites folders. Thus, it does not allow user to use the same disk. By default this feature is off and to turn it on, user has to select a backup location – either a network drive or external storage media. File History is a new backup service introduced in Windows 8.
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