When you buy Windows, it comes as a disk image file (ISO) that you download, or as an installation disc or USB flash drive.If your copy of Windows came on a DVD, you might need to create a disk image of it to work with Boot Camp.I also use it as a portable external hard drive to store other important files and my i Tunes library. Also, when I start up Disk Utility, it takes a long time to appear on the list on the left hand side and when it does and I attempt to use First Aid, it fails and gives the following text: Is there some way I can repair the hard drive and avoid losing all my data?I have had the hard drive for a couple of years and it has always worked perfectly.I have used GNU ddrescue to copy a crashed WD external disk over to an identical one.ddrescue told me that 9 MB out of 2TB could not be rescued, so I think that's pretty good.Use below line sudo fsck_hfs -r -d /dev/disk1s1 The command (-r) in above code will recreate Catalog B – Tree.
Boot Camp Assistant guides you through installing Windows on your Mac.
Following 3 activities could be performed when Disk Utility fails to repair Mac hard drive.
1) Backup Data You can try copy and paste all files from the corrupt external or internal hard drive to another destination.
You can enroll an individual partition of a drive in a Fusion Drive, instead of the whole drive.
This means that you can join just a specific data partition of your HD with an SSD, and leave the Recovery Partition intact.