Hello, I need help to understand the HD usage and how macOs manages it (or not): I have a MBA with base 128gb storage. Breakdown of the usage: 59 gb free 51 gbs- used for system (crazy!!)? photos 5.6 gb (icloud photos and optimize storage is enabled) Documents ~1gb Mail ~1gb Music - always streamed from apple music / itunes Apps <500MB imessage ~200MB No purchased Movies are downloaded. under 500MB of files in the downloads directory TM backups are done onto an external HDD. Not sure there are local snapshots Its a 2 month old machine and up until a month back i used to have between 85 to 88 gbs of free HD space. It runs on latest macOS 10.14.5 updated last week. So, whats up with the usage here? can you guys help me troubleshoot this? I cant understand why the system is taking 51gbs? I can post pics with more info if you need in couple of hours. Thanks. edited to add more info on usage.