Is buying a refurbished drive ok to do and what's a recommended model? I was looking here for one: that I would do it myself.ġ- I just want another 1TB hard drive that is similar to what the stock one is. I decided instead of paying all the labor fees etc. Since it is out of warranty, I took it to my nearest Apple Authorized Service Provider where they charged me $50 to tell me that yes, indeed my hard drive was dead. The drive is showing no errors.My 1TB hard drive recently decided it's had its final day (for mid-2010 iMac 27' display). Same thing happened towards the end of the install. So I reboot my computer back but this time i try Internet Recovery Mode (CMD+OPT+R), reran disk utility and it gave me no errors, so I tried to erase/format the drive and then attempted to reinstall MacOS High Sierra. So I exit out of the installer and open up disk utility again and did a verify/repair, everything showed up okay but when I attempted to erase/format the drive it gave me an error that it couldn't unmount. I then proceed to reinstall Mac OS X Mountain Lion, and at the end where it says 0% I get the same error saying: An error occurred while preparing the installation. My drive is in HFS Journaled btw, not sure if that makes a difference or I should format it to AFPS. I boot my iMac back into recovery mode (CMD+R) and performed a verify/repair on my drive and everything seems okay, no problems.

Okay I was able to un-couple my Fusion drive and then re-fuse it back together. I'd just put together a good USB3 external drive (either HDD or SSD) and use that for additional storage instead. It's not worth the trouble of 'extracting' or replacing it. IF the HDD will not pass the 'repair disk' tests, I'd just leave it 'unused in place'. If it checks out ok, I'd use it as a 'standalone drive' for storage and keep it backed up. If the results are good, I'd run 'repair disk' on it 10 times in succession, looking for a good report each and every time.ġ0. If so, install a copy of the OS onto it, get an account set upħ. DE-FUSE the internal fusion drive using TerminalĤ.

BACK UP whatever you wish to save on the internal fusion drive if you can (it -might- be 'mountable' IF you boot from an external drive)ģ. (if you don't have an external drive that is bootable, you'll need to create one)Ģ.

Imac change hard drive