Hello, I recently upgraded my 2013 rMBP to High Sierra. but then when i was freeing up disk space the disk space from the Finder and Disk Utility window does not seem to update. Disk Utility: Finder: Finder - Get Info: About Mac > Storage: I tried to google this issue, and most people did is to disable Optimize Storage and iCloud Drive, then create dummy 10gb files to fill up the SSD and then delete them some even suggested Disabling Time Machine i tried all of these but none seem to work.
In disk utility, in the upper left corner, there's a drop down combo box labeled "view" - try changing changing it to "show all devices." It might give you more info.
Happened to mine. This is because of Time Machine local snapshot. I did the terminal thing and regain all the phantom disk space i lost. https://discussions.apple.com/thread/8093880
i already read that one and also tried the terminal command I was about to re install High Sierra last night, but was unable to due to some error saying "cannot install on this disk due to encyrption in progress" i checked System Preferences > Security & Privacy > FireVault and saw that an encryption is in progress. I also saw my last time machine backup failed due to the encyrption thing. so i let it "encrypt" overnight while having my TM backup drive plugged. I woke up today and the encryption and time machine is done and i now have that 80+ gb of free space. only weird thing now is that when i "Get Info" on my SSD i see "80 GB (232.1 MB purgeable)" which is weird but my disk utility, About mac and Finder now shows 80gb free.
