If you're still with me at this point, I'm betting that you will probably receive a message similar to the following:.
What this means is that somewhere along the line, the part of the system that keeps track of where files are stored on the hard drive recorded some information incorrectly. My guess is that this probably happened during the upgrade to Lion, and affects a specific part of the disk that is used by the recovery system. Luckily, it's not necessarily anything bad, and it's relatively easy to fix, though the process might be a bit complicated if you're unfamiliar with it, so I've outlined it below.
This menu allows you to perform tasks like restoring a Time Machine backup or reinstalling Lion on your Mac.
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The option we want, however, should be the last item in the list -- Disk Utility. This will open the same screen we saw before, but this time you might notice that the Repair Disk button in the bottom right, under the Verify Disk button we clicked last time is now enabled. Go ahead and click the repair button, and Disk Utility will automatically find and fix any problems that are found. When your Mac is finished restarting, you'll need to head back over to the Apple support site to download the When the download finishes, go ahead and install the update, which will require a restart when the installation has finished.
Finally, you'll want to go to your Downloads folder and install the Lion Recovery HD update that we downloaded earlier.here
Find My Mac not working for you? You're not alone
If all went well, you should be able to go into your iCloud preferences now and enable the Find My Mac option:. The Buyer's Guide. US Edition. Log in.
How to track a stolen Mac
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Latest in Disk utility. Image credit:. Check to make sure that Location Services are enabled: You should be presented with a screen similar to the following: If you're still with me at this point, I'm betting that you will probably receive a message similar to the following: If Apple can disable the firmware password, that means there's a hole in the security -- what stops the thief from following the same procedure that Apple would?
Presumably just some sort of special knowledge that only service personnel can get easily. In other words, a firmware password isn't meant as a last line of defense, just another obstacle.
Track a stolen MacBook with the Find My Mac utility
Only authorised Apple service providers can ask Apple and they have to show a customer's proof of ownership. Just getting around to reading this. Why not just set the firmware password the same as your regular login password? Less likely to ever forget what it is, and no less secure overall. Share Facebook Twitter Reddit. Email Address.
Find My Mac both useful and frustrating for law enforcement
Will Mayall. Adam Engst. Chris Saldanha. Kevin Ryan. Thanks Adam!