Wiping with dell script

my bro's laptop hard drive recently died on him. (2 weeks old inspiron 15). Called dell and they agreed to send the technician in. called them earlier today regarding my bro's personal data in the hd as it must be returned. the dell tech gave me this email to erase data. Is a a permanent wipe ??


Following are the steps for Running the Debug Script
The following debug script removes DOS and non-DOS partitions on the hard drive. This script is intended for use on Dell computers with Dell provided operating systems and hard drives. This debug script allows you to convert a drive from an incompatible partition structure to one that will work with FDISK.EXE such as, converting Linux partitions to MS-DOS partitions.
Boot from Drivers cd.
Go to the DOS prompt
A black screen will appear. Press the <5> key on the keyboard followed by the <Enter> key.
The boot process will conclude with an A:\> prompt, followed by a blinking underline (cursor).
From the A:\> prompt, type the following commands and press the <Enter> key after each command:

NOTICE:
Performing the following will remove all data from your hard disk drive.

NOTE:
Type the bolded text only (the debug prompt is a dash). You will receive an error if you type anything other than the bold text. The non-bolded text represents the system response that will appear after typing each command and press the <Enter> key.
debug
-F 200 L1000 0
-A CS:100
xxxx:0100 MOV AX,301
xxxx:0103 MOV BX,200
xxxx:0106 MOV CX,1
xxxx:0109 MOV DX,80

NOTE:
Type 80 for the Main hard drive - HD 0, or type 81 for the Second hard drive - HD 1.
xxxx:010C INT 13
xxxx:010E INT 20
xxxx:0110 (Leave this line blank and press the <Enter> key)
-G
The message, Program terminated normally, appears. Turn off the computer by pressing the power button.
On the next startup the hard drive must be partitioned and formatted.

 

No. That script does nothing more than delete the MBR and partition table. The partitions and all their contents are left untouched and completely intact.

Without a partition table, it will appear to Windows and normal disk utilities as though the hard disk is blank, but it's a trivial process to resurrect the partitions and recover all contents. Since the partitions themselves are left untouched, all one needs to do is rebuild the partition table, and there are plenty of utilities on the 'net that can accomplish that relatively simple task with ease.

Do a google search for DBAN ("Darik's Boot and Nuke"). It will securely wipe the hard drive's sectors. Your ultimate objective is to overwrite every sector on the hard disk, though be forewarned that it can take a very long time, depending on the size of the hard disk.