Why does my preference pane for Time Machine on my Mac unlock every time I open it?

Question

Why does my preference pane for Time Machine on my Mac unlock every time I open it?

Hi,

My MacBook Pro is a 2012 model, running on Mac OS X 10.8.3 Mountain Lion.

It is running on an OCZ Agility 4 SSD (which runs the TRIM command using the 'TRIM enabler' hack.) and has 16GB of RAM, powered by a 2.5Ghz dual core Intel Ivy Bridge Core i5.

I back up my Mac using Time Machine to a 500GB WD "My Passport" drive formatted as Mac OS Extended (Journaled), with a GUID partition map.

Every time I lock the preference pane for Time Machine in the System Preferences, the next time I open it, it is unlocked.

Is this a bug with OS X Mountain Lion, or could it be a hardware problem?

Does this happen to anyone else?

Thanks.

MacBook Pro, OS X Mountain Lion (10.8.3), 13" Entry level model, uses an SSD

Posted on Mar 18, 2013 7:24 AM

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Answer 1

Linc Davis

Level 10

209,739 points

Mar 18, 2013 12:44 PM in response to Iamawesome997

From the menu bar, select

 ▹ System Preferences... ▹ Security & Privacy ▹ General

If there's a closed padlock icon in the lower left corner of the preference pane, click it and authenticate to unlock the settings. Enter your login password when prompted.

Click the Advanced button and check the box marked

Require an administrator password to access locked preferences

in the sheet that drops down. Then click OK.

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