Disk Utility is Apple's go-to macOS app for finding and repairing common disk errors, but if it's your Mac's internal disk that's the problem, then your Mac might not even start up into macOS.
Apple on Monday released a utility that builds a Lion recovery disk on a USB flash drive, giving users a way to restore their Macs if the machine’s hard drive fails ...
On Monday, Apple released Lion Recovery Disk Assistant, a tool that lets you fix a Mac with a corrupted or dead hard drive by creating a Lion Recovery volume on an external hard drive or USB stick.
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