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<blockquote data-quote="greyhound rick" data-source="post: 1704890" data-attributes="member: 147622">Hello Everyone,I have a 2009 MBP running OS X 10.7.5I recently, with your help, replaced the HD with a SSD and the performance difference has been excellent. Thank you!I wanted to create another USB bootable drive and after creating it I wanted to &quot;test&quot; it to see if I could use it to boot up my MBP rather than using the SSD.I created the USB bootable drive and all went well, however, when I plugged in the USB drive and powered on my MacBook Pro while holding the &quot;option&quot; button, I was presented with the OS X Utilities screen. I chose to re-install Lion but when I selected the &quot;Mac OS X Install ESD, Mac OS X, 10.7.5&quot; usb bootable drive I saw that it said that the drive was locked.Ive tried to figure out by researching online how to &quot;unlock&quot; the usb flash drive, but no matter what I try I cannot do it. What I'm trying to accomplish is to have a thumb drive that I can use to boot my MBP in case of a SSD failure which would not allow me to use the Recovery Drive. Can you tell me what you think the problem is and is there any way to &quot;unlock&quot; this drive? Ive got to believe there is a way, but I have no idea.Thanks so much for helping me!Rick</blockquote>

[QUOTE="greyhound rick, post: 1704890, member: 147622"] Hello Everyone, I have a 2009 MBP running OS X 10.7.5 I recently, with your help, replaced the HD with a SSD and the performance difference has been excellent. Thank you! I wanted to create another USB bootable drive and after creating it I wanted to "test" it to see if I could use it to boot up my MBP rather than using the SSD. I created the USB bootable drive and all went well, however, when I plugged in the USB drive and powered on my MacBook Pro while holding the "option" button, I was presented with the OS X Utilities screen. I chose to re-install Lion but when I selected the "Mac OS X Install ESD, Mac OS X, 10.7.5" usb bootable drive I saw that it said that the drive was locked. Ive tried to figure out by researching online how to "unlock" the usb flash drive, but no matter what I try I cannot do it. What I'm trying to accomplish is to have a thumb drive that I can use to boot my MBP in case of a SSD failure which would not allow me to use the Recovery Drive. Can you tell me what you think the problem is and is there any way to "unlock" this drive? Ive got to believe there is a way, but I have no idea. Thanks so much for helping me! Rick [/QUOTE]

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