I said this before already. Scroll up and read it. Also search it in Operating System section of the forum where I complained about Windows 7. It is programming error, unless Microsoft did this deliberately, as an act of e-v-i-l. :wub:
Go get yourself a PC and load up Windows 7. It don't matter whether you join it to the domain or leave it local. Create a new user. Say.. cheez?

Go create some files or copy music or whatever. Log out. Log in as an administrator (or any user account with admin access). Go into the users directory and rename the cheez user folder to something else. Log out baby. D: Log back on as cheez. All the files you copied are gone (in desktop, my docs, anywhere within user folder) and all your settings are gone. They are gone f-o-r-e-v-e-r. You will not be able to retrieve them even if you use some of the most expensive data recovery programs in the world. You are screwed man. :wub:
That's what I call Windows 7 F-A-I-L.