Hi, I've already read a large amount of forum posts about "System" holding up a large part of the storage, and I've tried every tip I found so far. But most posts and articles blames High Sierra and the Time Machine issue. I'm running the latest Mojave 10.14.2 on a mid 2015 MacBook pro. My time machine has just backed up, and I've deleted the local snapshots right after the backup. So at least I don't think it's Time Machine making the issue. I've also been through the User Library folder to look for unusually large folders, with no luck. I have to partition my mac with bootcamp, so I need as much space I can get. Any tip of how to clear up "System" would be highly valued. Would it for example help to format the hard disc (really don't want to do that). Thanks!