Since I installed High Sierra I get more space used by 'hidden system files' and 'mobile backups'. I looked into it, disabled TimeMachine automatic backup. Even tried the other terminal commands to delete local snapshots but didn't work. After checking with DaisyDisk I still have about 60GB used by 'mobile backups' folder that is hidden. Mostly 50GB is trash that I don't want backed up at all. I googled and found no way to delete that 'mobile backups' content. Even tried this other terminal command: sudo tmutil disablelocal But it doesn't seem to work in High Sierra. Does anyone know how to clean or delete the 'mobile backups' or will it eventually clean itself and get rid of the old stuff?