Windows 7: Sharing between users on different computers

My roommates and I decided to set up sharing between the computers on the wireless network. So I managed to stumble my way through it and get the correct setup using a user profile with the same name and password. Everything works fine on other computers, but I managed to click something to the effect of "Remember my credentials" on my computer while trying to access the other computer with my normal user details (hadn't figured out all of the sharing at this point). I don't particularly want to log into that profile anytime I want to see what is shared, it defeats the purpose of setting up the network. So how do I get it to stop remembering my credentials?
Using Windows 7 Home btw.

Are you asking that you want to break the automatic connection to other computers? And have it request a password? If so open Windows Explorer find the connection to the other computer(s) and highlight it right mouse click and select disconnect. Then make new connections as you did on the other computers, without the remember credentials.