Problem: The file is locked
Your Answer

You're asked for an administrator name and password when moving certain items in the home folder. You repeatedly get a message that macOS needs to repair your Library to run applications. When saving changes to an item, you get a message that the file is locked or you don't have permission to save.

Close All Open Apps with a Single Click on Your Mac [How-To]

You get an alert that the startup disk has no more space available for application memory. Your Mac performs slowly. Photos and videos that you import into Photos or iPhoto don't appear within the app, but do appear in Finder.


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Or your library needs to be updated or reselected each time you open Photos or iPhoto. Reset permissions If the issue started after changing the permissions of items in your home folder , use the following steps to reset permissions.

How to Assign a File Type to an Application in Mac OS X Lion

To accept the recommendation, click the button. To delete an item, move the pointer over the file, then click the Delete button. Trash: In this category, click Empty Trash to erase all the items in the Trash. Move the pointer over a file, then click the Delete button to delete an individual file.

Click a category in the sidebar: Applications, Music, and Books: These categories list files individually. The easy solution to this problem is to quit the offending program, and thereby release the lock held on the file, but identifying the program can be difficult, especially if the process is some background task.

To manage this, we are going to drill down into the Terminal and make use of a few commands:. First try to identify if the program is a user application ie, one in the Applications folder and try quitting the program in OS X, if possible. If not, then try the following approaches in sequence for a progress from encouraging the program to relaunch gently to hard-quitting it.

Find and delete files on your Mac

You can optionally run the corresponding Terminal command:. This will allow you to gently encourage the program to release its resources.


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In many cases programs that receive this will just refresh their configurations and keep running.