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- NDD (Norton Disk Doctor) (Advanced Edition only)
-
-
- Description: Analyzes one or more disks and corrects the problems it finds.
- If you run NDD without either the /COMPLETE or the /QUICK
- switch, NDD presents you with a full-screen menu you can use
- either to perform a diagnostic scan or to solve certain
- specific problems. See the notes below 49 for details about
- the menu system.
-
- Syntax: Version 4.5: NDD [(drive:)...] [/COMPLETE | /QUICK] [/D0 |
- /D1] [/BW] [/NOSNOW] [/R:(filespec) |
- /RA:(filespec)] [/TYPE(n)]
-
- Parameters:
-
- (drive:) The single-letter specifier (A:, B:, C:, etc.) for the drive
- you want to process. Follow the letter with a colon. To
- process more than one drive, provide multiple drive specifier
- (A:, B:, C:, etc.)s, separating each of these with a space.
- The current drive is the default.
-
- /BW Specifies a black-and-white display in versions 4.0 and 4.5.
-
-
-
- /D0 Requests the standard screen driver (the default) for a fully
- IBM-compatible computer system.
-
- /D1 Requests the screen driver for a BIOS-compatible computer
- system.
-
- /COMPLETE Performs a complete analysis of the specified disk. The
- analysis includes reading all data sectors and attempting to
- move data in allocated unusable sectors to new locations.
-
- /NOSNOW Prevents screen flicker if your system has an older CGA card.
-
- /QUICK Performs a quick diagnosis of the boot record, the file
- allocation tables, and the directory tree structure.
-
- /R:(filespec) Produces a report about the results of running NDD and stores
- it in the named file. The (filespec) can include a drive and a
- path. If the file does not already exist, NDD creates it in
- the current directory on the default disk. If the file already
- exists, NDD overwrites it without first prompting you for
- confirmation.
-
-
-
- /RA:(filespec) Produces a report about the results of running NDD and appends
- it to the named file. The (filespec) can include a drive and a
- path. If the file does not already exist, NDD does not produce
- the report.
-
- /TYPE(n) Overrides the drive type for the primary hard drive. You might
- need to enter this parameter if your system setup values are
- incorrect for your primary hard drive. To run NDD on a
- portable system that uses RAM as a primary hard drive, enter
- /TYPE1 and instruct NDD to proceed when you see the message,
- ``NDD doesn't recognize the Drive Type on Hard Disk 1.'' You
- can also use NDD on a portable system to analyze either floppy
- disks or hard drives, but you cannot use NDD to analyze
- virtual (RAM) disks.
-
- Notes:
-
- If you do not specifically request either a complete or a quick analysis with
- the /COMPLETE or the /QUICK switch, NDD presents you with a full-screen menu.
- You can choose Diagnose Disk to execute disk diagnostics, Common Solutions to
- perform selected recovery options, or Exit Disk Doctor to leave the utility.
-
- If you select the Diagnose Disk option on the main menu, NDD first asks you
- to select which of the drives you want to diagnose from among those it
- detected on the system. For each drive you select, NDD checks the boot
- record, the file allocation tables, and the directory structure. (This
- diagnosis is identical to the /QUICK switch option.)
-
- When the quick diagnosis is completed, NDD asks you whether you would also
- like to test all data sectors on the selected drives. (This diagnosis is
- identical to the /COMPLETE switch option.) Graphic displays show the progress
- of each test as it is executed. After all tests are complete, you have the
- option to produce a report of the results and to output it to either a file
- or your system printer.
-
- If you select Common Solutions from the main menu, three specific recovery
- options are available. The first option, Make a Disk Bootable, lets you
- rebuild a disk system area to make it bootable; this rebuild includes copying
- the MS-DOS COMMAND.COM, IO.SYS, and MSDOS.SYS files from the current system
- disk. Using the second option, Recover from DOS's RECOVER, you can rebuild
- the subdirectories and the root directory entries on a disk against which you
- inadvertently executed the MS-DOS Recover command. The third option, Revive a
- Defective Diskette, lets you recover the data on a defective floppy disk by
- rewriting the format information. (Unlike an MS-DOS format command, this
- option reformats without destroying the original data.)
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- See <NUFR>, <NUFS>, <NUNU>, <NUSD>, <NUSF>.
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