Whenever you try to modify a file that you have not touched in over two weeks, you’ll receive the following message:
The file [File Name] is locked because you haven’t made any changes to it recently.
This happens because the files which have not been changed for 2 weeks (by default) are automatically locked by OS X Lion. This is to prevent accidental auto-save changes from modifying your files.
To modify or disable file locking feature in Mac OS Lion follow the steps.
Step 1 Open the System Preferences from the Apple menu on the top left.
Step 2 Select “Time Machine”.
Step 3 Click the “Options” button.
a) To disable file locking feature, uncheck the box next to “Lock documents [2 weeks] after last edit”.
b) To change the time interval between file locking, click the drop-down list and choose 1 day, 1 week, 2 weeks, 1 month or 1 year.
Then click “Save” button.
Now you wouldn’t get the annoying prompt.
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Thanks for reading!