Delete a failed bootcamp partition MacBook Pro I just tried to install windows with Boot Camp on my Macbook Pro running macOS Sierra. Just when Boot Camp wanted to split my Mac's hard drive into partitions, I stopped it, leaving some useless space taken up on my hard drive. 

Now, I don't know how to delete that bootcamp space (about 40 GB); the bootcamp partition does not even appear in Disk Utility.

How can I delete this partition and free up its storage space?
I recall a few years back I had difficulty removing a boot camp partition with the boot camp utility.  I wound up using disk utility to remove the boot camp partition and resize my Macintosh hard drive back to its initial state.



Select the book camp partition in the pie chart and then just hit the minus button beneath



After that I just wound up using the Boot Camp utility again to start the whole process over of creating a new partition for Boot Camp