How can I delete all my personal files on my Mac so they are not recoverable
127161
How to do a secure erase on a Macbook Pro?
120836
Is it possible to make a file that has full permissions for everybody but is impossible to delete?
149021
How do I clean up my harddrive?
59814
macOS High Sierra: Where is the Secure Empty Trash option?
4580
Mac OS X file recovery
61365
Is it possible to reset all folder permissions?
67108
Is it possible to delete the "useless" apps pre-installed on my Mac?
137448
How do I remove all files in a folder except just some specified files?
155877
How can I manually delete old backups to free space for Time Machine?
22395
How to delete a file from Time Machine backups in Big Sur?
82633
How can I delete Time Machine backups, moved into trash?
157178
How do I delete a folder
24430
Delete/repair files with weird permissions/owner/group
42072
How to delete the contents of a folder?
126596
Does Find My Mac stop working after the system has been wiped?
128074
How do I remove a directory and all its contents?
84924
Find and remove large files that are open but have been deleted