User Profile or Home Folder Issue

I am facing an issue

I have Microsoft server 2008 Enterprise version, and Clients are Microsoft Windows 7 Ultimate versions,

when client users login the systems, home folder or User Profile folder are created in C drive of Local Computer Other than the Server. By creation of Bulk user's profile folder, C drive of local system is Full.

any Solution for this issue kindly help to resolve the Issue?

Regards 

Shakks75