Avant tout, merci pour cette réponse rapide, un dimanche soir !
je place ci-dessous le contenu du testdisk.log, mais j'ignore s'il est complet car la recopie des données de la partition disparue vers un disque dur externe est toujours en cours et, bien qu'elle paraisse 'figée' car cela fait un bon moment que l'affichage indique "Copying, please wait... 67310 ok, 0 failed", je vois toujours les accès au disque externe qui se manifestent par la diode qui clignote...
S'il faut que j'arrête la copie pour permettre d'obtenir plus de renseignements dans le log, n'hésitez pas à me le demander.
Encore merci.
-------------------------------------
Sun Nov 29 16:11:45 2020
Command line: TestDisk
TestDisk 7.2-WIP, Data Recovery Utility, Novembre 2020
Christophe GRENIER <
grenier@cgsecurity.org>
https://www.cgsecurity.org
OS: Windows 8 (9200)
Compiler: GCC 9.3, Cygwin32 3001.4
ext2fs lib: 1.45.3, ntfs lib: 10:0:0, reiserfs lib: none, ewf lib: 20140608, curses lib: ncurses 6.1
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(/dev/sda)=4000787030016
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(/dev/sdb)=4000787030016
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(/dev/sdc)=2000398934016
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(/dev/sdd)=192048095232
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(/dev/sde)=2000398931968
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\PhysicalDrive0)=4000787030016
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\PhysicalDrive1)=4000787030016
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\PhysicalDrive2)=2000398934016
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\PhysicalDrive3)=192048095232
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\PhysicalDrive4)=2000398931968
filewin32_getfilesize(\\.\PhysicalDrive5) GetFileSize err Fonction incorrecte.
filewin32_setfilepointer(\\.\PhysicalDrive5) SetFilePointer err Fonction incorrecte.
Warning: can't get size for \\.\PhysicalDrive5
filewin32_getfilesize(\\.\PhysicalDrive6) GetFileSize err Fonction incorrecte.
filewin32_setfilepointer(\\.\PhysicalDrive6) SetFilePointer err Fonction incorrecte.
Warning: can't get size for \\.\PhysicalDrive6
filewin32_getfilesize(\\.\PhysicalDrive7) GetFileSize err Fonction incorrecte.
filewin32_setfilepointer(\\.\PhysicalDrive7) SetFilePointer err Fonction incorrecte.
Warning: can't get size for \\.\PhysicalDrive7
filewin32_getfilesize(\\.\PhysicalDrive8) GetFileSize err Fonction incorrecte.
filewin32_setfilepointer(\\.\PhysicalDrive8) SetFilePointer err Fonction incorrecte.
Warning: can't get size for \\.\PhysicalDrive8
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\C:)=1800751224320
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\D:)=1255001817088
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\E:)=397259309056
filewin32_getfilesize(\\.\F:) GetFileSize err Fonction incorrecte.
filewin32_setfilepointer(\\.\F:) SetFilePointer err Fonction incorrecte.
Warning: can't get size for \\.\F:
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\G:)=187212759040
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\H:)=0
Warning: can't get size for \\.\H:
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\I:)=0
Warning: can't get size for \\.\I:
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\J:)=0
Warning: can't get size for \\.\J:
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\K:)=0
Warning: can't get size for \\.\K:
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\L:)=4000650887168
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\M:)=745290072064
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\O:)=1572864000
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\Q:)=163439443968
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\R:)=19517145088
disk_get_size_win32 IOCTL_DISK_GET_LENGTH_INFO(\\.\U:)=1742129332224
Hard disk list
Disk /dev/sda - 4000 GB / 3726 GiB - CHS 486401 255 63, sector size=512 - WDC WD4002FYYZ-01B7CB0, S/N:NHG679ZK, FW:01.01M02
Disk /dev/sdb - 4000 GB / 3726 GiB - CHS 486401 255 63, sector size=512 - WDC WD40EFRX-68WT0N0, S/N:WD-WCC4E2EJRUEZ, FW:82.00A82
Disk /dev/sdc - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - WDC WD20EZRZ-00Z5HB0, S/N:WD-WCC4N0ATV431, FW:80.00A80
Disk /dev/sdd - 192 GB / 178 GiB - CHS 23348 255 63, sector size=512, S/N:000000004A13, FW:0101
Disk /dev/sde - 2000 GB / 1863 GiB - CHS 243201 255 63, sector size=512 - TOSHIBA External USB 3.0, S/N:20150424007326F, FW:5438
Drive O: - 1572 MB / 1500 MiB - CHS 191 255 63, sector size=512, S/N:000000004A13, FW:0101
Drive Q: - 163 GB / 152 GiB - CHS 19870 255 63, sector size=512, S/N:000000004A13, FW:0101
Drive R: - 19 GB / 18 GiB - CHS 2372 255 63, sector size=512, S/N:000000004A13, FW:0101
Partition table type (auto): Intel
Disk /dev/sdd - 192 GB / 178 GiB
Partition table type: Intel
Analyse Disk /dev/sdd - 192 GB / 178 GiB - CHS 23348 255 63
Geometry from i386 MBR: head=255 sector=63
NTFS at 0/32/33
NTFS at 191/89/27
NTFS at 20061/186/30
check_part_i386 4 type 84: no test
Current partition structure:
 1 * HPFS - NTFS              0  32 33   191  89 26    3072000 [SYSTEM_DRV]
 2 P HPFS - NTFS            191  89 27 20061 186 29  319217664 [Windows7_OS]
 3 P HPFS - NTFS          20061 186 30 22434 141 43   38119424 [Lenovo_Recovery]
 4 P Sys=84               22434 141 44 23348  88 36   14680064
search_part()
Disk /dev/sdd - 192 GB / 178 GiB - CHS 23348 255 63
NTFS at 0/32/33
filesystem size           3072000
sectors_per_cluster       8
mft_lcn                   128000
mftmirr_lcn               2
clusters_per_mft_record   -10
clusters_per_index_record 1
     HPFS - NTFS              0  32 33   191  89 26    3072000 [SYSTEM_DRV]
     NTFS, blocksize=4096, 1572 MB / 1500 MiB
NTFS at 191/89/27
filesystem size           319217664
sectors_per_cluster       8
mft_lcn                   786432
mftmirr_lcn               2
clusters_per_mft_record   -10
clusters_per_index_record 1
     HPFS - NTFS            191  89 27 20061 186 29  319217664 [Windows7_OS]
     NTFS, blocksize=4096, 163 GB / 152 GiB
NTFS at 20061/186/30
filesystem size           38119424
sectors_per_cluster       8
mft_lcn                   786432
mftmirr_lcn               2
clusters_per_mft_record   -10
clusters_per_index_record 1
     HPFS - NTFS          20061 186 30 22434 141 43   38119424 [Lenovo_Recovery]
     NTFS, blocksize=4096, 19 GB / 18 GiB
file_pread(7,2,buffer,375095295(23348/153/37)) lseek err Invalid argument
file_pread(7,1,buffer,375095295(23348/153/37)) lseek err Invalid argument
file_pread(7,2,buffer,375095296(23348/153/38)) lseek err Invalid argument
file_pread(7,14,buffer,375095298(23348/153/40)) lseek err Invalid argument
file_pread(7,3,buffer,375095312(23348/153/54)) lseek err Invalid argument
file_pread(7,3,buffer,375095359(23348/154/38)) lseek err Invalid argument
file_pread(7,8,buffer,375095375(23348/154/54)) lseek err Invalid argument
file_pread(7,11,buffer,375095422(23348/155/38)) lseek err Invalid argument
file_pread(7,2,buffer,375097344(23348/186/7)) lseek err Invalid argument
Results
   * HPFS - NTFS              0  32 33   191  89 26    3072000 [SYSTEM_DRV]
     NTFS, blocksize=4096, 1572 MB / 1500 MiB
   P HPFS - NTFS            191  89 27 20061 186 29  319217664 [Windows7_OS]
     NTFS, blocksize=4096, 163 GB / 152 GiB
   P HPFS - NTFS          20061 186 30 22434 141 43   38119424 [Lenovo_Recovery]
     NTFS, blocksize=4096, 19 GB / 18 GiB
interface_write()
 1 * HPFS - NTFS              0  32 33   191  89 26    3072000 [SYSTEM_DRV]
 2 P HPFS - NTFS            191  89 27 20061 186 29  319217664 [Windows7_OS]
 3 P HPFS - NTFS          20061 186 30 22434 141 43   38119424 [Lenovo_Recovery]
search_part()
Disk /dev/sdd - 192 GB / 178 GiB - CHS 23348 255 63
NTFS at 0/32/33
filesystem size           3072000
sectors_per_cluster       8
mft_lcn                   128000
mftmirr_lcn               2
clusters_per_mft_record   -10
clusters_per_index_record 1
     HPFS - NTFS              0  32 33   191  89 26    3072000 [SYSTEM_DRV]
     NTFS, blocksize=4096, 1572 MB / 1500 MiB
NTFS at 191/89/26
filesystem size           3072000
sectors_per_cluster       8
mft_lcn                   128000
mftmirr_lcn               2
clusters_per_mft_record   -10
clusters_per_index_record 1
     HPFS - NTFS              0  32 33   191  89 26    3072000 [SYSTEM_DRV]
     NTFS found using backup sector, blocksize=4096, 1572 MB / 1500 MiB
NTFS at 191/89/27
filesystem size           319217664
sectors_per_cluster       8
mft_lcn                   786432
mftmirr_lcn               2
clusters_per_mft_record   -10
clusters_per_index_record 1
     HPFS - NTFS            191  89 27 20061 186 29  319217664 [Windows7_OS]
     NTFS, blocksize=4096, 163 GB / 152 GiB
NTFS at 432/41/58
heads/cylinder 16 (NTFS) != 255 (HD)
sect/track 2 (NTFS) != 63 (HD)
filesystem size           6174
sectors_per_cluster       1
mft_lcn                   2058
mftmirr_lcn               5162
clusters_per_mft_record   2
clusters_per_index_record 8
     HPFS - NTFS            432  41 58   432 139 57       6174 [Boot]
     NTFS, blocksize=512, 3161 KB / 3087 KiB
NTFS at 20061/186/29
filesystem size           319217664
sectors_per_cluster       8
mft_lcn                   786432
mftmirr_lcn               2
clusters_per_mft_record   -10
clusters_per_index_record 1
     HPFS - NTFS            191  89 27 20061 186 29  319217664 [Windows7_OS]
     NTFS found using backup sector, blocksize=4096, 163 GB / 152 GiB
NTFS at 20061/186/30
filesystem size           38119424
sectors_per_cluster       8
mft_lcn                   786432
mftmirr_lcn               2
clusters_per_mft_record   -10
clusters_per_index_record 1
     HPFS - NTFS          20061 186 30 22434 141 43   38119424 [Lenovo_Recovery]
     NTFS, blocksize=4096, 19 GB / 18 GiB
NTFS at 22434/141/43
filesystem size           38119424
sectors_per_cluster       8
mft_lcn                   786432
mftmirr_lcn               2
clusters_per_mft_record   -10
clusters_per_index_record 1
     HPFS - NTFS          20061 186 30 22434 141 43   38119424 [Lenovo_Recovery]
     NTFS found using backup sector, blocksize=4096, 19 GB / 18 GiB
file_pread(7,2,buffer,375095295(23348/153/37)) lseek err Invalid argument
file_pread(7,1,buffer,375095295(23348/153/37)) lseek err Invalid argument
file_pread(7,2,buffer,375095296(23348/153/38)) lseek err Invalid argument
Results
   * HPFS - NTFS              0  32 33   191  89 26    3072000 [SYSTEM_DRV]
     NTFS, blocksize=4096, 1572 MB / 1500 MiB
     HPFS - NTFS            191  89 27 20061 186 29  319217664 [Windows7_OS]
     NTFS, blocksize=4096, 163 GB / 152 GiB
     HPFS - NTFS            432  41 58   432 171 59       8192 [Boot]
     NTFS, blocksize=512, 4194 KB / 4096 KiB
   P HPFS - NTFS          20061 186 30 22434 141 43   38119424 [Lenovo_Recovery]
     NTFS, blocksize=4096, 19 GB / 18 GiB