A few months ago I tried to install Windows 10 on my Mac (High Sierra). This was unsuccessful and left me with a APFS partition of 49.5 GB called "BC1".
When I try to delete this partition it says this:
I already tried to delete it in Recovery Mode and even reset my Mac once.
This is what comes up when I type "diskutil list" in the terminal:
I have tried many different terminal commands already but in the end it always leaves me with this BC1 partition. I guess that's my punishment for trying to install Windows on a Mac. How can I remove it?