One of the two backups I have scheduled in Ghost 15 just backs up some folders I have on my D drive where content changes occasionally. Inside the folder on the Ghost backup disk, there are a bunch of folders with names like fbfFiles_767. I suspect many of these that are older have backups of files I have since deleted from the D drive during recent house cleaning. I'm wondering if it's safe to manually delete most of the older folders (or all of them) and then immediately run a new backup of my slimmed-down D drive?