I have been running into this problem recently where i cannot access another computers hard drive from windows 7, knowing the username and password. I have tried using "Computername\Username" as the user name, along with "Username@computername" to no avail. What is really confusing me, making me wonder if this will work at all, is the fact that windows 7's username prompt specifies a domain. Considering none of my computers are, or have the ability to be, on a domain, this is an odd question to ask. Does anyone have a way around this that doesn't require changing settings on the computer that i need to access?