Announcement: Upgrade to macOS Mojave

With features like Dark Mode, Stacks, and four new built-in apps, macOS Mojave helps you get more out of every click. 
Find out how to upgrade to macOS Mojave >

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.


Question: Corrupt SSD on High Sierra won't unmount

Late 2013 27" iMac on High Sierra. original SSD blade is corrupt due to utility power failures (even w/surge protect). Won't unmount no matter what. Tried Disk Util, recovery methods, Terminal commands, 7 repair programs running it a target drive. Freezes computer connected to it when it mounts. Cannot format as it won't unmount. Turned off spotlight - no luck. Any ideas or clues??

iMac with Retina 5K display, macOS High Sierra (10.13.3), 32 GB Ram

Posted on


Page content loaded

User profile for user: DesignerPro7

Question: Corrupt SSD on High Sierra won't unmount