Can’t Remove Purgeable Disk Space
Note: If you have MacOS High Sierra installed, you need this guide instead.
When trying to install Bootcamp on my MacBook Pro, I had to delete a lot of files to get enough space to be able to accommodate for a Bootcamp partition on the drive. But even after removing around 60 GB of storage, MacOS Sierra could still not make a large enough partition for Windows. When checking with Disk Utility, it showed that indeed I had enough space, but there was a part called Purgeable that was impossible to move. No tools from Apple are available to handle this, but here’s how I fixed it.