Have you seen a question mark instead of the app icon in the dock? Have you had troubles connecting to the internet? Or is Spotlight failing to find a file? Such problems are caused by incorrect permissions.Īlso, it is worth noting that your home folder contains many files and folders that third-party apps have permissions to either read or write to.
However, if these permissions get messed up – maybe a third-party app installer sets incorrect permissions on the files it installs or messes up the whole application folder – then weird things will occur. If there is order in the universe, everything just works. Going further, this means that if you want to open a folder, you need to have the execute permission for that folder, so it makes sense that shared folders will have their permissions set to allow execute access to anyone. Every file or folder on your Mac has permissions set to determine who can read, write to, or execute it: you (the owner), staff (a group of people) or everyone. The short explanation is that Mac OS X incorporates a subsystem based on a UNIX-style operating system that uses permissions in the file system.
When it comes to troubleshooting and Mac maintenance, one of the most frequently suggested actions – especially for older macOS versions – is to repair disk permissions. How many times have you encountered Spotlight failing to find the file that you are looking for on the Mac when you're 100% sure it's there? How about wanting to edit a file and getting a prompt saying the file is locked? When these things happen, you can know for sure that it's time to fix the disk permissions on your Mac.
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