It is all daunting for this aging, early adapter. Also, I have added iCloud for my iPhone photos and a Windows OneDrive from work and I don't know what else at the moment. I guess didn't change enough Windows or browser defaults or install defaults. Now my SSD C drive is packed full with program data and libraries, yet there is plenty of room on the D drive. I started out putting my documents, etc., on the 'D' drive, but then-with too many distractions in my life I gueess- I fell asleep at the wheel. I got a new computer about a year ago, with Windows 10, an SSD 'C' drive and a pretty big D drive.