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Welcome to SigmaCopy
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SigmaCopy is a simple backup software developed for the Windows (XP or higher) operating system. It creates a time stamped copy of all your data files located in a given directory. The backup destination directory structure is equal to the structure of your source data. A simple copy/paste task can be used to restore from backup. Each backup is stored into a subdirectory indicating the time the backup was performed at. This allows to restore from each time stamp or have access to the data condition at the appropriate time.

SigmaCopy supports the HardLink feature of the Windows NT file system (NTFS). If the destination folder is based on that file system, the amount of space required to hold all the backup files is reduced to a minimum. Only files with changed contents requres space. All unchanged data is simply linked by the file system and require a few bytes for the linkage only.