I have an SSD machine with 90 Gbytes of storage running at home, not connected to server. I use a USB drive for extra capacity but I seldom have much spare space on C: as I have SQL server and Visual Studio installed. Looking at storage use on C: I notice 1.7 Gbytes of files in C:\Users\Simon\AppData\Roaming. Can I delete these as I use my login on only one computer at home? Roaming profiles are not enabled. There are also 1.9 GBytes of files on C:\Users\All Users. I believe All Users is used for creating profiles for new users and All Users contains folders corresponding to those in C:\Programs and C:\Programs (x86). Can I delete any folders with programs that wouldn't be needed by any new accounts I might create?