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Windows 7: External HDD Cyclic Redundancy / CHKDSK not available for RAW drives

25 Nov 2015   #11

Windows 7 Home Premium 32 bit

From the Quickscan result, I see that the partition is not lost. The partition table is intact in sector 0. However the bad sectors seem to have damaged your File System.

You need to have a drive exclusively for cloning.

(ddrescue will be doing a sector to sector cloning. Sector 0 of your faulty drive which contains the MBR code and the partition table will be copied to sector 0 of the other drive. If you use a drive with data on it, Sector 0 of that drive which contains the MBR code and partition table of that drive will be wiped off and replaced with Sector 0 of the faulty drive. You will then lose all existing data on that drive.)

Software that claim to do data recovery from a RAW drive mostly rebuild the files from scratch if the File System is not found/corrupt. If ddrescue is unable to extract data from the bad sectors even after three passes or unable to deal with the bad sectors because they are irrecoverably bad and gives up, one may have to finally resort to such software :). We shall be doing it with PhotoRec and if it fails with GetDataback Simple for such a contingency.

So we are only making a best effort which may click or buckle. Keep your fingers crossed.

Download SystemRescueCd-x86-4.6.1 (449 MiB) Download - SystemRescueCd and create your bootable pendrive with Rufus.

When you are ready with a new 1.5TB/2TB external HDD (Don't buy any drive larger than 2TB) just give a call here for further instructions.

Keep your faulty drive safely unplugged and under rest till then. Don't tax it further.

My System SpecsSystem Spec

 External HDD Cyclic Redundancy / CHKDSK not available for RAW drives

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