Hi guys, Just switched many years ago from PC (Windows/Linux user) to Mac for the first time, and i go for the new 13" MBPr 2016 TB (base model). There some much stuff that I should learned about mac environment, and I want ask about "Purgeable space" on this new macOS. I've search about this, and seems like it's the new feature that known on macOS Sierra. When I've uninstall application or deleted some files, it was marked as purgeable. Not free space. My recent conclusion after some research is it was Optimized Storage feature. Anyone know how to remove that?? Here my search result about it. 1. Disable local Time Machine backup feature, using sudo tmutil disablelocal. Source here. Look for answer from HevvyD 2. With create smaller partition to delete that. Source here 3. Disable Optimized Storage feature I've already try no.3, but still no luck.