Cleverly recovering corrupted files in XP system

Q: My computer's operating system is Windows XP. Recently, the hard disk has failed. I can't figure out whether it is a physical bad track or a logical bad track. But it is certain that some files I stored in the D drive are damaged. Is there any way to help me find these files?
A: You can use some special repair tools to repair your damaged files, or you can fix them under the command prompt of XP system. The premise is that the data still exists and is not covered by other data. Take the example of repairing the Back.txt file in the root directory of your D drive. The operation method is: Click “Start →Run”, enter “ldld;CMD” in the run input box (without quotes) and press Enter. At the command line prompt that pops up, type “Recover d:\\Back.txt” (without quotes) and press Enter. The recovery process cannot be stopped and one file should be restored at a time. If your hard drive does have physical bad sectors, using this method will lose some of the data stored on bad sectors. You can edit or re-enter the missing information after restoring the file.