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Apple Computing Products:
macOS - Apps and Programs
App Store Unresponsive - Unable to run Updates
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<blockquote data-quote="RavingMac" data-source="post: 1451646" data-attributes="member: 45350"><p>FWIW you really ought to have a bootable clone backup if you don't already have one. Carbon Copy Cloner is one option; clone your HD to an external, then wipe the disk with Disk Utility and reinstall the OS.</p><p></p><p>But, to answer your question, if you have a bootable USB of Lion, you can boot off of that and then do an OS reinstall without erasing (formatting) the HD.</p><p>Restart your Mac and hold down the Option key to choose a different boot drive.</p></blockquote><p></p>
[QUOTE="RavingMac, post: 1451646, member: 45350"] FWIW you really ought to have a bootable clone backup if you don't already have one. Carbon Copy Cloner is one option; clone your HD to an external, then wipe the disk with Disk Utility and reinstall the OS. But, to answer your question, if you have a bootable USB of Lion, you can boot off of that and then do an OS reinstall without erasing (formatting) the HD. Restart your Mac and hold down the Option key to choose a different boot drive. [/QUOTE]
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Apple Computing Products:
macOS - Apps and Programs
App Store Unresponsive - Unable to run Updates
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