If you can't edit a file in any application, including the Terminal, then it may have a lock flag associated with it. Topher, an avid Mac user for the past 15 years, has been a contributing author to ...

Users with external hard drives or other storage devices may run into problems accessing files on these devices, especially when attempting to delete files that are reported by Mac OS X to be "locked" ...

Windows may lock some files and prevent access to them from within File Explorer for a number of possible reasons. In many cases, a program that crashes or freezes does not release or reset the file ...

The Get Info window’s Locked option prevents changes on a single Mac, and modifies the item’s Finder icon. Macworld reader Jeff noted that when he uses the Locked option, files stored in iCloud Drive ...

File locking has a long tradition in computing: you or independently running software wants to make sure that a file isn’t modified or deleted when it’s needed or in use. Because macOS is Unix based, ...