Method and tool for restoring crashed operation system of computer

Claim 1

A method for restoring an extended operation system of a computer under a basic operation system of the same computer, to a previous state prior to a crash, comprising steps of: 1) searching all files, including directory names, from a disk which contains said extended operation system, and establishing a matching table file containing short file names and corresponding long file names; and 2) restoring said long file names from said short file names according to said matching table file, so as to solve a problem of said basic operation system that does not support long file names, and fast restore a crashed extended operation system upon said basic operation system; wherein said searching and establishing process in step (1) further comprises steps of: a) searching said disk using an inquiry term; b) judging if a file exists, then proceeding to step (c) if yes, or proceeding to step (k); c) judging if said file is a directory, then proceeding to step (d) if yes, or jumping to step (j); d) judging if the name of said directory contains a dot “.” format, then jumping to step (j) if yes, or proceeding to step (e); e) connecting a short file name with said inquiry term; f) generating a directory node for inserting a directory tree; g) using said directory node as a father node for searching downward son directories; h) searching said directory tree and establishing a matching table file; i) searching said directory tree and modifying codes of special characters; j) searching other files; and k) completing the restoring operation.

Claim 2

A method for restoring an extended operation system of a computer under a basic operation system of the same computer, to a previous state prior to a crash, comprising steps of: 1) searching all files, including directory names, from a disk which contains said extended operation system, and establishing a matching table file containing short file names and corresponding long file names; and 2) restoring said long file names from said short file names according to said matching table file, so as to solve a problem of said basic operation system that does not support long file names, and fast restore a crashed extended operation system upon said basic operation system; wherein said searching and establishing process in step (1) further comprises steps of: a) searching said disk using an inquiry term; b) judging if a file exists, then proceeding to step (c) if yes, or proceeding to step (k); c) judging if said file is a directory, then proceeding to step (d) if yes, or jumping to step (j); d) judging if the name of said directory contains a dot “.” format, then jumping to step (j) if yes, or proceeding to step (e); e) connecting a short file name with said inquiry term; f) generating a directory node for inserting a directory tree; g) using said directory node as a father node for searching downward son directories; h) searching said directory tree and establishing a matching table file; i) searching said directory tree and modifying codes of special characters; j) searching other files; and k) completing the restoring operation.