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Missing Storage Space on Mac

I have an OS X EI Capitan (with a capacity of 500 GB). I had 2 partitions and tried to merge all partitions. Now I do not have an access to all space and around 340 GB is missing:



Mac partition is using 173.6 GB:


I searched for the solution but I could not solve it. I re-installed my mac but did not work.

Would you please guide me on that? How can I restore my space?




MacBook Pro 15″, OS X 10.11

Posted on Nov 8, 2020 6:26 AM

Reply
Question marked as Top-ranking reply

Posted on Nov 13, 2020 9:04 AM

Hello fatemehramezani,



Thanks for that info and for choosing the Apple Support Communities. If we understand correctly, you are having an issue with missing space on the hard drive of your Mac. First, try running First Aid on your hard drive with the built in Disk Utility tool while in macOS Recovery, as this can correct simple issues like you're experiencing.



Disk Utility for Mac: Repair a disk using Disk Utility



Next, use safe mode to start up your Mac as it does the following things:



  • Verifies your startup disk and attempts to repair directory issues, if needed
  • Loads only required kernel extensions
  • Prevents Startup Items and Login Items from opening automatically
  • Disables user-installed fonts
  • Deletes font caches, kernel cache, and other system cache files



Log in to your user account and test the issue while in safe mode and then restart normally and test the issue again.



How to use safe mode on your Mac

Graphics performance limited in macOS Recovery, safe mode, or Guest User mode



Cheers!

4 replies
Question marked as Top-ranking reply

Nov 13, 2020 9:04 AM in response to fatemehramezani

Hello fatemehramezani,



Thanks for that info and for choosing the Apple Support Communities. If we understand correctly, you are having an issue with missing space on the hard drive of your Mac. First, try running First Aid on your hard drive with the built in Disk Utility tool while in macOS Recovery, as this can correct simple issues like you're experiencing.



Disk Utility for Mac: Repair a disk using Disk Utility



Next, use safe mode to start up your Mac as it does the following things:



  • Verifies your startup disk and attempts to repair directory issues, if needed
  • Loads only required kernel extensions
  • Prevents Startup Items and Login Items from opening automatically
  • Disables user-installed fonts
  • Deletes font caches, kernel cache, and other system cache files



Log in to your user account and test the issue while in safe mode and then restart normally and test the issue again.



How to use safe mode on your Mac

Graphics performance limited in macOS Recovery, safe mode, or Guest User mode



Cheers!

Nov 17, 2020 7:37 AM in response to fatemehramezani

Thanks for replying, fatemehramezani, and that additional info, it really helps! Since you are still having an issue with missing storage space, you can make a backup of your personal data and put a fresh copy of macOS on your Mac using macOS Recovery mode, making sure to erase the hard drive before reinstalling macOS:



Back up your files with Time Machine

How to back up your Mac - Official Apple Support

How to reinstall macOS



Have a great day and thanks for using the Apple Support Communities!

Missing Storage Space on Mac

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