Lock files and folders in Mac OS X

Aug 11, 2010 - 3 Comments

You can easily prevent changes being made on any files or folders in Mac OS X by locking the file or folder in question.

* Select the file or folder you want locked
* Go to File > Get Info (or hit Command+i)
* Under ‘General’ click the ‘Locked’ checkbox

Close out of Get Info and the file/folder will now be locked, preventing any changes from being made to the file. If a file or folder is locked, it will also cause an alert dialog to popup if you try and delete it, saying “Item ___ is locked. Do you want to move it to the Trash anyway?”
lock file to prevent changes

You can unlock a file in Mac OS X by reversing this process and unselecting the checkbox next to “Locked”, although if you are trying to unlock a file that you do not have privileges to you will need the admin password.

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Posted by: Manish Patel in Mac OS X, Tips & Tricks

3 Comments

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  1. bijan says:

    Reversing the process does not work for unlocking in Snow leopard. I have even rebooted the laptop and still cannot unlock the folders and files.

    Can anyone help me?

    Thank you

  2. bramofon says:

    This only prevents changes being made to the file.

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