On Windows XP I want to create a new user for browsing only. Thus I want it to have access only to the download Folder. While this can be archived with file privileges easily, I cannot find a way to "hide" (as in "there is no way to access it") complete drives from the user. So the files that are in the root of the drive can be listed (not read) which poses a (quite small) security thread that I'd like to eliminate.
Obviously there is not much use in hiding my main partition where the system files are on. So this is about "hiding" partitions which are unrelated to both, my browser and files of the operating system.
Also to clarify "hiding" a bit more: From the perspective of the restricted user "hidden" drives should be unmounted. However, the restricted user is only used as a secondary login, so my main user is logged in at the same time and should continue to access the files happily.