So my SSD has 500 GB of storage I have only one Partition (the Macintosh HD Partition) but it only has ~100 GB storage space.

MY Drive in Disk Utility

Is there any way I can get my total ~500 GB of storage on my partition?

here is what shows up in terminal (command diskutil list)

enter image description here

  • @klanomath I now added a picture of diskutil list but I can't execute the other command. It is asking me for a password even though I don't have one. Just pressing enter doesn't work btw. – Reewen Feb 13 at 17:16
  • BTW A command prepended with sudo (e.g sudo gpt -r show disk0) asks for your admin password (if you are logged in as an admin). After entering this password the command will be executed. ;-) (gpt -r show disk0 shows the partition table of disk0) – klanomath Feb 13 at 17:28
  • @klanomath Well I don't have an admin password, at least not that I know. Well anyway thank you for your help :) – Reewen Feb 13 at 17:31
  • After seeing the "Microsoft Reserved partition" it was rather obvious what had happened previously...and the output of the gpt command wasn't really required. – klanomath Feb 13 at 17:34
  • @klanomath Now that you mention it I had windows 10 installed which actually wasn't possible on my mac. I managed to do it by screwing around with the bootcamp files. I totally forgot that I had installed windows once. I guess I didn't correctly uninstall it. Thanks again :) – Reewen Feb 13 at 17:42

You probably had some dual boot config previously and removed the main Windows partition(s). You didn't expand the APFS container disk0s2 afterwards.

A small blocking disk0s3 is a left-over though (right "after" disk0s2). This small partition has to be removed before you can expand your APFS container.

  1. Erase the Microsoft Reserved partition:

    diskutil eraseVolume "Free Space" %noformat% /dev/disk0s3
  2. Expand the APFS container:

    diskutil apfs resizeContainer /dev/disk0s2 0

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