Member Avatar for JwAlstrom

.
Thursday - 17-April-'08
.
Win-XP's "Computer Management" ==> "Disc Management"
shows me partitions that used to be OK as now being
"Healthy (Unknown Partition)".
.
I had used Copy Commander to copy the entire Disk Image
to an attached USB HardDrive.
.
The USB Drive - after a LONG copying proceedure,
contained all three partitions from my internal HardDrive -
all were/are shown as "Healthy (Unknown Partition)".
.
ALSO -
Two of the three partitions on the internal source drive now
show up as "Healthy (Uniknown Partition) - & are UnAccessable.
.
None of these "Healthy" partitions have Drive-Letters.
.
HELP ! ! ! Please ! !
.
JimA
.

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  • 3 Replies
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  • Latest Post Latest Post by mohan01

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Generated

Brief expert summary and safe recovery plan for (and others reading later): the "Healthy (Unknown Partition)" state usually means Windows cannot interpret the partition metadata it found. That can result from a damaged or overwritten MBR/partition table, a partition-type ID mismatch after a raw clone, disk-signature collisions, or from hardware/USB-bridge oddities. correctly noted Windows is not recognizing the filesystem; 's suggestion of a surface-fix tool is noted but needs caution.

Immediate actions (highest priority — avoid any further writes):

  1. Stop using both the internal disk and the USB copy; do not assign drive letters, format, or run chkdsk.
  2. Physically disconnect the USB clone to avoid signature collisions or accidental writes.
  3. Create a sector-level image of each affected disk (image the disks, not files). Use a read-only imaging tool that tolerates bad reads (for example, tools that implement a rescue/pass approach). Work from the images for all recovery attempts.

Recommended recovery workflow:

  1. Run a partition-recovery tool (TestDisk is a low-risk first choice) against the image or the disk: Analyze -> Quick Search -> Deeper Search. If TestDisk can list files from a found partition, copy them immediately to a separate healthy drive. If partitions look correct, TestDisk can rewrite the partition table.
  2. If TestDisk cannot restore a usable partition, use file-recovery/carving tools (PhotoRec, R-Studio, GetDataBack, etc.) against the image to extract files.
  3. If the drive shows read errors or physical degradation, use an imaging tool designed for failing drives (ddrescue-style) to salvage as much as possible before attempting repairs.

Cautions and final notes:

  • Do not run chkdsk or allow Windows to format; those write operations can make recovery much harder.
  • Tools that "repair" the surface (e.g., Hard Drive Regenerator) write to the disk and can reduce recoverability if used before imaging. If the data is critical, consider a professional data-recovery lab after imaging.

Recommended Answers

All 3 Replies

Member Avatar for bobbyraw

.
Thursday - 17-April-'08
.
Win-XP's "Computer Management" ==> "Disc Management"
shows me partitions that used to be OK as now being
"Healthy (Unknown Partition)".
.
I had used Copy Commander to copy the entire Disk Image
to an attached USB HardDrive.
.
The USB Drive - after a LONG copying proceedure,
contained all three partitions from my internal HardDrive -
all were/are shown as "Healthy (Unknown Partition)".
.
ALSO -
Two of the three partitions on the internal source drive now
show up as "Healthy (Uniknown Partition) - & are UnAccessable.
.
None of these "Healthy" partitions have Drive-Letters.
.
HELP ! ! ! Please ! !
.
JimA
.

healthy unknown is that windows does not recognized the file system format. Fat, fat32 or ntfs. if you cannot access the drive through windows explorer yuo will not be able to get the files that are on it, Except if you use a 3rd party software to get the file

Member Avatar for Selwyn

hard drive regenerator is what you need
It will repair the drive (fixes bad sectors) so you can sort out your files

Member Avatar for mohan01

hard drive regenerator is what you need
It will repair the drive (fixes bad sectors) so you can sort out your files

how to obtain harddrive regenerator...

regards
mohan

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