Copyright 1993 by Symantec CorporationDISKTOOLc.ô'⌠&p
ç	ç	Ö5How to use Help╙╙0hyperlink##
	Disk Tools IndexââV
About Disk Tools#&&┘Make a Disk Bootable)┘┘Recover from DOS's Recover*Φ
Revive a Defective Diskette0┼┼∙Mark Disk Clusters as Good or Badww╞	Select Drive''=!Partition Table$ggd"File Allocation Table!╦#System Information₧₧▀$Imageùùì%UnFormatRR$&UnErase!v&Norton Disk Doctor
Each tool of the Norton Utilities has context-sensitive help,
available at a touch of the ^BF1^B key.

Whenever you are using a dialog box and you want instructions
on how to proceed, press ^BF1^B. When you've got a menu pulled
down, you can move the highlight to any item and press ^BF1^B for
help on that item.

When you are first getting familiar with a tool, you will
find it helpful to select the ^b[Index]^b button at the bottom
of any help screen. It displays a list of topics, at least
one of which provides background and introductory material.

^hHyperlinks^h are highlighted phrases in a help topic that 
transfer you to another topic. Select the ^b[Go To]^b button
(just press ^bG^b) or double-click the hyperlink text. Select
the ^b[Go Back]^b button (just press ^bB^b) to return to the
original topic. When ^hmore than one hyperlink^h is on a screen,
press ^bTab^b or ^bShift^b+^bTab^b to move among them.

  With the Keyboard             █  With a Mouse
▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀█▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀
^BTo access help:^B                 █
   ^C07 Press F1                   █ ^C07 Press F1 for context-
                                █   sensitive help
^BTo exit help:^B                   █
   ^C07 Press Esc or select        █ ^C07 Click [Cancel]
     [Cancel] or press C        █   
                                █
^BTo select a help topic:^B         █
   ^C07 Select [Index] or press I  █ ^C07 Click [Index]
   ^C07 Press Tab or Shift+Tab to  █ ^C07 Double-click the topic
     highlight a topic          █
   ^C07 Select [Go To] or press G  █
                                █
^BTo scroll through a topic:^B      █
   ^C07 Use  and  or press       █ ^C07 Drag the slide on the
     Home End PgUp PgDn         █   scroll bar or click the
                                █   arrows at top and bottom
^BTo select a button:^B             █   
   ^C07 Press the accented letter  █ ^C07 Click the button
     in the button or use       █
     ^C1B and ^C1A to highlight       █
     button and press Enter     █
                                █
^BTo expand a hyperlink:^B          █
   ^C07 Press Tab or Shift+Tab     █ ^C07 Double-click the hyperlink
     to highlight text in       █   text
     contrasting color or       █ ^C07 Click [Go Back] to return
     intensity                  █
   ^C07 Select [Go To] or press G  █
   ^C07 Select [Go Back] or        █ 
     press B to return          █
You're in the expanded topic. If you become hyperactive and get
lost, select ^B[Index]^B. Or, press ^bEsc^b to exit the help system.

To return to the previous topic, select ^B[Go Back]^B (press B).
Do so now.
%%%%%	%^BAbout^B
 ^h Disk Tools                          ^h
^BCommands^B
 ^h Make a Disk Bootable                ^h
 ^h Recover from DOS's Recover          ^h
 ^h Revive a Defective Diskette         ^h
 ^h Mark a Cluster                      ^h
^BHelp^B
 ^h How to use Help                     ^h
Disk Tools is a set of procedures that let you recover from
certain types of data disasters and simplify some technical
operations. They are automated procedures with plenty of
safeguards. These tools are designed for easy operation
even by novice users.

^BTo use one of the Disk Tools:^B
 * Highlight the desired tool and press Enter.
 Or,
 * Click on the desired tool using a mouse.

This procedure takes all the necessary steps to make it
possible to use a disk as a DOS system or "boot" disk; on
a floppy disk, you can start your computer when this disk
is in the A: drive.

The DOS ^bSYS^b command is supposed to do this, but it often fails
on DOS versions earlier than 5.0 saying, "No room for system
files." Disk Tools makes room by physically moving the files
that are causing the blockage. Then it copies the system files
correctly onto the disk (including COMMAND.COM). It can even
adjust a hard disk ^hpartition table^h in case that got scrambled
somehow.

^bNote^b: This procedure is 100% safe; it cannot harm a disk.

The first dialog asks which disk to make bootable. Use ^B^B and ^B^B
and press Enter, or just press the drive ID letter. The rest
of the action is automatic.
The DOS RECOVER command is dangerous ── its default operation
causes you to lose all of your subdirectories! The DOS manual
suggests using RECOVER after you see a "sector read error," but
use the ^BNorton Disk Doctor^B instead to heal that problem.

After using DOS's RECOVER, your root directory contains
files with names like ^bFILE0000.REC^b, and there are no
subdirectories. Use this Disk Tool to clean up the mess.

There is one other reason to use this tool. In the ^Bvery rare^B
case where your disk's directory gets scrambled, but the
^hFile Allocation Table^h is intact, this can rebuild the directory
(albeit with arbitrary filenames).

A dialog prompts you to select a disk. After that you'll get
two strong warnings (remember, this tool is needed very
rarely) and ^byou can back out by pressing Esc^b at any time
without harm, even after the disk map is displayed, right up
until the entire disk map is colored in bold.

The rest of the action is automatic. The disk is analyzed
while showing a visual map of the disk data. At the end, the
directory of the chosen disk will still contain names like
"FILE0000," but it will also contain subdirectory names and,
where possible, files will have their original filename
extensions.
When you see ^BBad sector reading drive A: Abort, Retry...^B, the
problem is often related to the "sector ID" marks between the
sectors.

This tool rewrites the sector ID marks, without wiping the
data. In the case of a physical problem, say the disk is
scratched or if the disk came in contact with a magnet, this
tool will make a heroic effort to dig out whatever part of the
disk is readable.

Depending on the amount of un-revivable physical damage, you
should be able to see a directory on the disk and access it
normally.
	This provides a simple way to tell DOS not to store data on
a particular part of a disk. Or, you can perform the reverse
operation ── tell DOS to go ahead and use an area that is
currently marked as "bad."

The Norton Disk Doctor or some other source may describe a
"disk error at cluster ^Bnnn^B" or similar message. You may use
this tool to put a special code in the File Allocation Table
(^hFAT^h) so that DOS will no longer use the defective part of the
disk. Actually, Norton Disk Doctor will mark-and-move
automatically, but you may use this tool to manually mark some
clusters near the bad one. If one part of the disk is physically
damaged, nearby ones may eventually show intermittent problems.

^bThis is a very safe operation^b; the tool will check to see if a
file currently owns that cluster and, if so, it will move its
data to a different part of the disk. This is much safer and
easier, for example, than doing the work manually with Disk 
Editor from the Norton Utilities. You cannot lose any data
with this tool.

Be sure to pick the right drive and, on floppy drives, put the
right disk in place. The ^bMark Clusters^b dialog prompts for
a cluster number.

^bNote:^b Input a cluster number, not a sector number.

To change a "bad" cluster to be marked as "good", press ^BTab^B
and press the ^BSpacebar^B to set the correct button. You can
use this option to reverse any previous input mistake. The
now "good" cluster will become available for use by files.
Disk Tools needs to know with which disk drive you wish to work.

Use ^B^B and ^B^B to move the highlight and press ^BEnter^B. Or, just press
a drive letter.

When performing an operation on a floppy disk drive, you will
get another prompt asking you to put the right diskette in the
drive. It's wise to look at the label on the diskette to make
sure it is the right one.
The partition table is a description of the physical
characteristics of each disk, how it has been divided up
into DOS drives, and whether you have any other operating
systems on the same disk. Wrong information in here will
keep the disk from booting and/or make DOS unaware of its
existence.
The file allocation table (FAT) is a table in the system area
of each disk that identifies the use of each cluster as free,
belonging to a file, or bad (unusable). A cluster is the basic
storage allocation unit for a disk (usually between 2K and 8K
in size, but larger on very large hard disks). Note that disk
space is allocated to files in whole clusters.
System Information is a program that reports the operational
status of your computer:

  * hardware
  * software
  * memory usage
  * network conditions
  * disk drives
  * benchmark comparisons to other computers 

To run System Information, type SYSINFO at the DOS prompt.
Image is a program that takes a snapshot of the system area of
your disk.

^hUnFormat^h and ^hUnErase^h use this information to recover
from disk disasters.
UnFormat is a program that lets you recover from situations
that may appear hopeless: damaged disks or disks that have
been reformatted accidentally.
UnErase is a program that lets you recover accidentally deleted
or erased files.
Norton Disk Doctor is a program that runs numerous test to
determine the health of your disks, warns you if it finds
problems, and gives you the option to correct them. The wise
computer user runs Norton Disk Doctor regularly to prevent
small problems from turning into large ones.

