PowerPC :: Hard Drive Not Working / Repair Volume Failed Could Not Unmount Disk.OS X V10.7 Lion :: Automator Copy Finder Items - File Couldn't Be Saved Error.OS X :: Couldn't Eject External, Now Disk Not Mounting?.OS X Mavericks :: Unable To Repair Or Unmount Disk To Reformat.Software :: Stop Disk From Unmount / Mount Automatically?.

OS X Technologies :: (Error) ImportPluginLoading: Couldn't Load Plugin.

Mac Pro :: External Hard Disk Mounts Again After Unmount?.OS X :: Formatting External HD - Could Not Unmount Disk.OS X :: Contents Of This Disk Can't Be Changed Mac Couldn't Be Installed On This Disk.MacBook Pro :: Erase Corrupted SSD Internal Drive - Can't Unmount Disk.OS X Mavericks :: Repartition From Recovery Disk / Cannot Unmount Disk.MacBook Pro :: Erase/Unmount Disk - Dock Utility?.OS X V10.7 Lion :: Can't Partition Disk- 'Error Cant Unmount Disk'.Hardware :: Unable To Reapair External Disk / Unmount Error.MacBook :: Disk Error Full - Couldn't Save And Change Saving Location.OS X :: Disk Utility Error / Disk Could Not Unmount.Intel Mac :: Erase Hard Drive Mac OS X (LION) 'Couldn't Unmount Disk'.Intel Mac :: Erase Disk Shows Couldn't Unmount Disk.MacBook Pro, Mac OS X (10.7.3) View 3 Replies Click the Erase button, a message displayed: Disk Erase failed. Disk Erase failed with the error:Couldn't unmount disk. Holding the Option key when restarting the macbook, and enter the Recovery HD, selecting the Disk Utility. Click the hard disk name, and select Erase tab. MacBook Pro :: Error - Couldn't Unmount Disk Feb 12, 2012

Mac volume could not be unmounted