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How to really ignore bad sectors?

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As a surface test showed I have a hard disk with a bad sector(s).
Before I replace this hard disk I started a full backup from my whole disk from a booted TI-BootCD 2017.
And yes, I ticked/enabled option "ignore bad sectors".

Anyway TI stopped after 20 minutes with a error prompt: Cannot read sector .......<ignore>

Why does TI not pay attention to my "igore bad sectores" option?

How can I really perform a full hard disk backup with ignoring bad sectors with stops?

Other backup image tools run without a problem.

I have heard that a "chkdsk" run could repair/exclude these bad sectors logically.
So should I run chkdsk always before a full TI backup?

Peter

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Peter, I suspect that the option to ignore bad sectors when making a backup really depend on what the problem with a sector is when it is encountered.

If you know that the drive is on its way out, then trying to save the data is obviously a priority, so persevere with your backup actions, including taking the ignore option if needed.  Also use different backup applications if you have them.

I would recommend trying to do a CHKDSK /R to try to identify the extent of bad sectors but if this also gives problems, then you may need to try using CHKDSK /B to re-evaluate bad clusters on the drive.

Microsoft Windows [Version 10.0.16232.1000]
(c) 2017 Microsoft Corporation. All rights reserved.

C:\WINDOWS\system32>chkdsk /?
Checks a disk and displays a status report.

CHKDSK [volume[[path]filename]]] [/F] [/V] [/R] [/X] [/I] [/C] [/L[:size]] [/B] [/scan] [/spotfix]

  volume              Specifies the drive letter (followed by a colon),
                      mount point, or volume name.
  filename            FAT/FAT32 only: Specifies the files to check for
                      fragmentation.
  /F                  Fixes errors on the disk.
  /V                  On FAT/FAT32: Displays the full path and name of every
                      file on the disk.
                      On NTFS: Displays cleanup messages if any.
  /R                  Locates bad sectors and recovers readable information
                      (implies /F, when /scan not specified).
  /L:size             NTFS only:  Changes the log file size to the specified
                      number of kilobytes.  If size is not specified, displays
                      current size.
  /X                  Forces the volume to dismount first if necessary.
                      All opened handles to the volume would then be invalid
                      (implies /F).
  /I                  NTFS only: Performs a less vigorous check of index
                      entries.
  /C                  NTFS only: Skips checking of cycles within the folder
                      structure.
  /B                  NTFS only: Re-evaluates bad clusters on the volume
                      (implies /R)
  /scan               NTFS only: Runs an online scan on the volume
  /forceofflinefix    NTFS only: (Must be used with "/scan")
                      Bypass all online repair; all defects found
                      are queued for offline repair (i.e. "chkdsk /spotfix").
  /perf               NTFS only: (Must be used with "/scan")
                      Uses more system resources to complete a scan as fast as
                      possible. This may have a negative performance impact on
                      other tasks running on the system.
  /spotfix            NTFS only: Runs spot fixing on the volume
  /sdcleanup          NTFS only: Garbage collect unneeded security descriptor
                      data (implies /F).
  /offlinescanandfix  Runs an offline scan and fix on the volume.
  /freeorphanedchains FAT/FAT32/exFAT only: Frees any orphaned cluster chains
                      instead of recovering their contents.
  /markclean          FAT/FAT32/exFAT only: Marks the volume clean if no
                      corruption was detected, even if /F was not specified.

The /I or /C switch reduces the amount of time required to run Chkdsk by
skipping certain checks of the volume.

C:\WINDOWS\system32>