A computer's file permission settings determine who is able to access its files and who can make changes to them. The owner or administrator of a Mac computer can specify the permissions for any file, ...

A file system provides attributes for files and directories on an operating system to help you determine which users on your computer can read, modify, or execute the contents of its files and ...

Noelle Oliveira says her Mac isn’t letting her save files from several different programs. She consistently receives the error (with various filenames and folder ...

Sometimes file access errors in OS X may actually be related to a program's sandboxing rather than being a classic file permissions error. Topher, an avid Mac user ...

IT admins can save time and energy when changing Mac permissions by doing it via the command line or remotely via SSH. Learn how it’s done and what the notation means for command-line permissions.

Topher, an avid Mac user for the past 15 years, has been a contributing author to MacFixIt since the spring of 2008. One of his passions is troubleshooting Mac problems and making the best use of Macs ...