How do I erase mountain lion developer preview and go back to Lion 10.7? I do not have lion or data backed up on my Air
How do I erase mountain lion developer preview and go back to Lion 10.7? I do not have lion or data backed up on my Air
I need a step by step instructions since I have never done this before, willing to set up partition if needed.
If you installed Lion from the Mac App Store or got it with the computer, restart with the Option key held down and see if its recovery partition still exists; if it does, tab to it, use the Disk Utility on it to erase the Mountain Lion partition or repartition the drive, and install Lion onto the blank partition. If you installed Lion from the USB thumb drive, use that.
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