what kinds of thing consume a system drive on a windows server? From what i can see most our file servers have a system drive which holds the OS files and software files, then their is a pagefile drive, and then a data drive. I have noticed some of the system drives have a smallish allocation, and are often running at 80% of capacity. OS is not my area of responsibility, but what kinds of things consume further space on system drives? I assume patches take up some space, but I wondered what else? Or once you have all the OS and software installed does the storage used/remaining remain pretty static. For example we have 3GB free on one server, I wondered what kind of acitons on the server could consume that space in one go?