External hard drive not accessible

How to use TestDisk to recover lost partition
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udg007
Posts: 1
Joined: 20 Jan 2017, 09:06

External hard drive not accessible

#1 Post by udg007 » 20 Jan 2017, 09:37

Hello Team,

I am facing an issue past 2 days when i insert my hitachi 750GB external hard drive it is getting detected but not accessible from windows. please find screen shot 1
screenshot1.JPG
screenshot1.JPG (15.46 KiB) Viewed 278 times
I ran the testdisk utility analyse option but still not able to fix the same.

The log find details:
Current partition structure:
1 * Sys=4F 120527 49 53 234813 237 34 1836016416

Bad relative sector.
2 * Sys=73 119380 132 62 153270 41 37 544437093

Bad relative sector.
3 * Sys=2B 113201 29 24 147074 114 59 544175136

Bad relative sector.
4 * SpeedStor 177063 118 26 177066 225 63 54974

Bad relative sector.
Only one partition must be bootable
Space conflict between the following two partitions
3 * Sys=2B 113201 29 24 147074 114 59 544175136
2 * Sys=73 119380 132 62 153270 41 37 544437093
Space conflict between the following two partitions
2 * Sys=73 119380 132 62 153270 41 37 544437093
1 * Sys=4F 120527 49 53 234813 237 34 1836016416
Space conflict between the following two partitions
1 * Sys=4F 120527 49 53 234813 237 34 1836016416
4 * SpeedStor 177063 118 26 177066 225 63 54974

search_part()
Drive H: - 750 GB / 698 GiB - CHS 91200 255 63
file_win32_pread(588,16,buffer,1060290(66/0/1)) read err: read after end of file
file_win32_pread(588,1,buffer,1060290(66/0/1)) read err: read after end of file
file_win32_pread(588,16,buffer,1089662(67/211/15)) read err: read after end of file
file_win32_pread(588,1,buffer,1089664(67/211/17)) read err: read after end of file


nalyse Drive H: - 750 GB / 698 GiB - CHS 91200 255 63
Geometry from i386 MBR: head=115 sector=52
BAD_RS LBA=1936269394 5382406
check_part_i386 1 type 4F: no test
BAD_RS LBA=1917848077 5967333
check_part_i386 2 type 73: no test
BAD_RS LBA=1818575915 5855017
check_part_i386 3 type 2B: no test
BAD_RS LBA=2844524554 5982593
check_part_i386 4 type 61: no test
Current partition structure:
1 * Sys=4F 120527 49 53 234813 237 34 1836016416

Bad relative sector.
2 * Sys=73 119380 132 62 153270 41 37 544437093

Bad relative sector.
3 * Sys=2B 113201 29 24 147074 114 59 544175136

Bad relative sector.
4 * SpeedStor 177063 118 26 177066 225 63 54974

Bad relative sector.
Only one partition must be bootable
Space conflict between the following two partitions
3 * Sys=2B 113201 29 24 147074 114 59 544175136
2 * Sys=73 119380 132 62 153270 41 37 544437093
Space conflict between the following two partitions
2 * Sys=73 119380 132 62 153270 41 37 544437093
1 * Sys=4F 120527 49 53 234813 237 34 1836016416
Space conflict between the following two partitions
1 * Sys=4F 120527 49 53 234813 237 34 1836016416
4 * SpeedStor 177063 118 26 177066 225 63 54974


Please find the current screenshot in analyse
current_analyse page.JPG
current_analyse page.JPG (59.13 KiB) Viewed 278 times
Please help me on the same.

i tried chkdsk option from cmd line it didnt work
Thanks in advance

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cgrenier
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Re: External hard drive not accessible

#2 Post by cgrenier » 20 Jan 2017, 21:00

It's useless to search partitions inside a partition.
Select the PhysicalDrive containing the partition H:, go in the Advanced menu, select the partition, choose Boot, RebuildBS, List.
If you can see your files, choose Write, confirm, Quit and restart your computer.
If it doesn't work, use PhotoRec.

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