I had windows on my mac.
I removed it with bootcamp.
My ssd is normally 256 Gb, now it shows it's only 216 Gb. Where is the rest ?
MacBook Pro with Retina display
not normal. Open Disk Utility, and group your 2 partitions into one from the app.
Download from the Internet OmniDiskSweeper and Grand Perspective (both free) and open them. They will show all of your files and the respective sizes. Transfer to an external HDD the files you do not want on your Mac or delete them.
Do not forget to empty trash. Only then is space allocated for additional data.
Ciao.
ssd 256 Gb shows only 216 Gb on MacBook
