Patent ID: 8028158

Claim:
A computer system, comprising: a computer system with: a system BIOS; an operating system that operates according to a system registry; at least one internal storage unit, storing plural user files; at least one externally attached storage unit, over a computer-controlled bus; and a first software application program, running on said computer system-, wherein said first software application program runs a backup routine a plurality of times based on actions on the computer, said first software application program running to: initially selectively formats said external storage unit; initially copies each of the files from said internal storage unit to said external storage unit; and initially forms a system registry on said external storage unit such that said external storage unit is bootable over said computer controlled bus; and incrementally updating said files and said system registry on said external storage unit, wherein said first software application program changes the system registry on said external storage unit at each of a plurality of times of running of said first software application.