It’s not precisely the same style as Ubuntu, but it’s the closest we’re gonna get.
Warning: Don’t make this change unless you are sure of what your username is, because you’ll have to type that in manually in order to login.
Manual Registry Tweak
Open regedit.exe through the start menu search box and navigate to the following key, which you might have to create.
Create these two new 32-bit DWORD values, giving them both a value of 1:
DisableCAD DontDisplayLastUserName
To remove this tweak just delete the two keys.
Note: It’s not a requirement to use the DisableCAD key. What this does is prevent the “Press Ctrl+Alt+Delete” screen, which is really quite ugly in Vista. If you’d rather use CAD you can omit that key.
Downloadable Registry Tweak
Download and unzip, and then double-click on UbuntuLogonVista.reg in the file. There’s another registry file to remove it.
Download UbuntuLogonVista Registry Tweak
Warning: Don’t make this change unless you are sure of what your username is, because you’ll have to type that in manually in order to login.
Extra Credit
To actually make it look somewhat similar to Ubuntu you could customize your logon screen.
