Boot Camp says I don't have space to install, though I do.
I am trying to reinstall a boot camp partition. I deleted the old one through boot camp and am using boot camp again to reinstall, but it says there is not enough free space to install the partition in. When I check my storage under Apple>About this Mac>Storage, it says I have 152 GB available. When I check in Disk Utility, I have ~76 GB free in the bar, but 150 below, with 73 'purgable'. The hard drive is a 240GB SSD from OWC.
MacBook Pro with Retina display, macOS High Sierra (10.13.6)