tmutil listlocalsnapshots /sudo tmutil deletelocalsnapshots 2018-xxxxxC'est une application qui se trouve dans Applications/Utilitaires, mais il faudrait venir plus souvent dans les forums si tu veux un suivi te permettant de mettre en application ce que l'on te proposera.Mais pour vous donner une idée de mon ignorance, quand vous me dites "ouvrir le terminal", je ne sais pas ce que vous voulez que j'ouvre
tmutil listlocalsnapshots /Pour diffuser un rapport EtreCheck ou un retour de commandes via le Terminal dans les forums, dans votre réponse, un clic sur cette icône ⊞, sélectionnez les Balises </> Code, dans la fenêtre qui s’ouvrira faites un Copier/Coller du rapport et/ou du résultat du Terminal, un clic sur Insérer et validez votre réponse.
 
 
Last login: Sun Sep 30 11:20:15 on ttys000
MacBook-Air-de-Marina:~ marinafurlan$ tmutil listlocalsnapshots /
MacBook-Air-de-Marina:~ marinafurlan$diskutil list
df -H /
sudo find -x / -d 1 -regex '.*[^\.\].*' -exec sudo du -shx {} +Last login: Sun Sep 30 11:23:19 on ttys000
MacBook-Air-de-Marina:~ marinafurlan$ diskutil list
/dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *121.3 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                 Apple_APFS Container disk1         121.1 GB   disk0s2
/dev/disk1 (synthesized):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      APFS Container Scheme -                      +121.1 GB   disk1
                                 Physical Store disk0s2
   1:                APFS Volume Macintosh HD            117.1 GB   disk1s1
   2:                APFS Volume Preboot                 23.0 MB    disk1s2
   3:                APFS Volume Recovery                518.0 MB   disk1s3
   4:                APFS Volume VM                      2.1 GB     disk1s4
MacBook-Air-de-Marina:~ marinafurlan$Last login: Sun Sep 30 11:41:26 on ttys000
MacBook-Air-de-Marina:~ marinafurlan$ df -H /
Filesystem     Size   Used  Avail Capacity iused               ifree %iused  Mounted on
/dev/disk1s1   121G   117G   1.1G   100%  843529 9223372036853932278    0%   /
MacBook-Air-de-Marina:~ marinafurlan$Last login: Sun Sep 30 11:42:27 on ttys000
MacBook-Air-de-Marina:~ marinafurlan$ sudo find -x / -d 1 -regex '.*[^\.\].*' -exec sudo du -shx {} +
Password:
find: /private/var/db/ConfigurationProfiles/Store: Operation not permitted
find: /private/var/folders/hx/w_kcp1hs7f9_8rkfkpclx7v80000gp/0/SafariFamily: Operation not permitted
find: /private/var/folders/hx/w_kcp1hs7f9_8rkfkpclx7v80000gp/0/com.apple.LaunchServices.dv: Operation not permitted
find: /private/var/folders/hx/w_kcp1hs7f9_8rkfkpclx7v80000gp/0/com.apple.nsurlsessiond: Operation not permitted
find: /private/var/folders/hx/w_kcp1hs7f9_8rkfkpclx7v80000gp/0/com.apple.routined: Operation not permitted
find: /private/var/folders/zz/zyxvpxvq6csfxvn_n00000y800007k/0/com.apple.nsurlsessiond: Operation not permitted
find: /private/var/folders/zz/zyxvpxvq6csfxvn_n00000s4000069/0/com.apple.nsurlsessiond: Operation not permitted
find: /private/var/folders/zz/zyxvpxvq6csfxvn_n00000s4000069/0/com.apple.routined: Operation not permitted
find: /private/var/folders/gp/9ns9w71j3vl7bgw1vkgrt3200000gn/0/SafariFamily: Operation not permitted
find: /private/var/folders/gp/9ns9w71j3vl7bgw1vkgrt3200000gn/0/com.apple.LaunchServices.dv: Operation not permitted
find: /private/var/folders/gp/9ns9w71j3vl7bgw1vkgrt3200000gn/0/com.apple.nsurlsessiond: Operation not permitted
find: /private/var/folders/gp/9ns9w71j3vl7bgw1vkgrt3200000gn/0/com.apple.routined: Operation not permitted
find: /private/var/folders/qq/vj6_d_xs5j54ms323qs5jny40000gq/0/SafariFamily: Operation not permitted
find: /private/var/folders/qq/vj6_d_xs5j54ms323qs5jny40000gq/0/com.apple.LaunchServices.dv: Operation not permitted
find: /private/var/folders/qq/vj6_d_xs5j54ms323qs5jny40000gq/0/com.apple.nsurlsessiond: Operation not permitted
find: /private/var/folders/qq/vj6_d_xs5j54ms323qs5jny40000gq/0/com.apple.routined: Operation not permitted
  0B    /.HFS+ Private Directory Data
1,0K    /home
  0B    /vps9.lat
471M    /usr
823M    /.Spotlight-V100
1,0K    /net
8,0K    /.DS_Store
  0B    /.PKInstallSandboxManager
  0B    /.PKInstallSandboxManager-SystemSoftware
2,6M    /bin
4,0K    /installer.failurerequests
  0B    /Network
1,2M    /sbin
  0B    /.file
  0B    /etc
  0B    /var
5,7G    /Library
  0B    /.Trashes
5,9G    /System
1,0G    /vm
3,2M    /.fseventsd
du: /private/var/db/ConfigurationProfiles/Store: Operation not permitted
du: /private/var/folders/hx/w_kcp1hs7f9_8rkfkpclx7v80000gp/0/SafariFamily: Operation not permitted
du: /private/var/folders/hx/w_kcp1hs7f9_8rkfkpclx7v80000gp/0/com.apple.LaunchServices.dv: Operation not permitted
du: /private/var/folders/hx/w_kcp1hs7f9_8rkfkpclx7v80000gp/0/com.apple.nsurlsessiond: Operation not permitted
du: /private/var/folders/hx/w_kcp1hs7f9_8rkfkpclx7v80000gp/0/com.apple.routined: Operation not permitted
du: /private/var/folders/zz/zyxvpxvq6csfxvn_n00000y800007k/0/com.apple.nsurlsessiond: Operation not permitted
du: /private/var/folders/zz/zyxvpxvq6csfxvn_n00000s4000069/0/com.apple.nsurlsessiond: Operation not permitted
du: /private/var/folders/zz/zyxvpxvq6csfxvn_n00000s4000069/0/com.apple.routined: Operation not permitted
du: /private/var/folders/gp/9ns9w71j3vl7bgw1vkgrt3200000gn/0/SafariFamily: Operation not permitted
du: /private/var/folders/gp/9ns9w71j3vl7bgw1vkgrt3200000gn/0/com.apple.LaunchServices.dv: Operation not permitted
du: /private/var/folders/gp/9ns9w71j3vl7bgw1vkgrt3200000gn/0/com.apple.nsurlsessiond: Operation not permitted
du: /private/var/folders/gp/9ns9w71j3vl7bgw1vkgrt3200000gn/0/com.apple.routined: Operation not permitted
du: /private/var/folders/qq/vj6_d_xs5j54ms323qs5jny40000gq/0/SafariFamily: Operation not permitted
du: /private/var/folders/qq/vj6_d_xs5j54ms323qs5jny40000gq/0/com.apple.LaunchServices.dv: Operation not permitted
du: /private/var/folders/qq/vj6_d_xs5j54ms323qs5jny40000gq/0/com.apple.nsurlsessiond: Operation not permitted
du: /private/var/folders/qq/vj6_d_xs5j54ms323qs5jny40000gq/0/com.apple.routined: Operation not permitted
4,7G    /private
668M    /.DocumentRevisions-V100
  0B    /.vol
34G    /Users
4,0K    /model
11G    /Applications
4,5K    /dev
4,0K    /Volumes
  0B    /tmp
  0B    /.dbfseventsd
  0B    /cores
MacBook-Air-de-Marina:~ marinafurlan$diskutil verifyVolume disk1Last login: Sun Sep 30 12:26:43 on console
MacBook-Air-de-Marina:~ marinafurlan$ diskutil verifyVolume disk1
Started file system verification on disk1
Verifying storage system
Using live mode
Performing fsck_apfs -n -x -l /dev/disk0s2
Checking volume
Checking the container superblock
Checking the EFI jumpstart record
Checking the space manager
Checking the object map
Checking the APFS volume superblock
Checking the object map
Checking the fsroot tree
Checking the snapshot metadata tree
error: btn: invalid value (6076, 20)
Snapshot metadata tree is invalid
The volume /dev/disk0s2 could not be verified completely
Storage system check exit code is 0
Finished file system verification on disk1
MacBook-Air-de-Marina:~ marinafurlan$Checking the snapshot metadata tree
error: btn: invalid value (6076, 20)
Snapshot metadata tree is invalid
The volume /dev/disk0s2 could not be verified completelydiskutil listLast login: Sun Sep 30 12:27:33 on ttys000
MacBook-Air-de-Marina:~ marinafurlan$ diskutil list
/dev/disk0 (internal, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *121.3 GB   disk0
   1:                        EFI EFI                     209.7 MB   disk0s1
   2:                 Apple_APFS Container disk1         121.1 GB   disk0s2
/dev/disk1 (synthesized):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      APFS Container Scheme -                      +121.1 GB   disk1
                                 Physical Store disk0s2
   1:                APFS Volume Macintosh HD            118.7 GB   disk1s1
   2:                APFS Volume Preboot                 23.0 MB    disk1s2
   3:                APFS Volume Recovery                518.0 MB   disk1s3
   4:                APFS Volume VM                      1.1 GB     disk1s4
/dev/disk2 (external, physical):
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:      GUID_partition_scheme                        *1.0 TB     disk2
   1:                        EFI EFI                     209.7 MB   disk2s1
   2:                  Apple_HFS SAMSUNG                 999.9 GB   disk2s2
MacBook-Air-de-Marina:~ marinafurlan$ 
	