Logon Screen Tweaker

Logon Screen Tweaker is a lightweight and portable application that enables users to customize the logon screen of Windows 7, in accordance with their preferences. It is very simple to work with it, as it packs a limited but powerful set of features to tinker with.
As installation is not a requirement, you can simply drop the executable file anywhere on the hard disk and run it immediately. There is also the possibility of moving Logon Screen Tweaker to a USB flash drive or similar storage unit, so you can run it on any computer that has Windows 7 installed.
What's important to take into account is that the Windows Registry area does not get new entries, and leftover files are not kept on the hard disk after removal.
The interface of the tool is well-organized and shows the current logon screen in the primary panel. You can load any picture from the computer to replace the default one with, as well as change the user picture and default logon source (by browsing for a custom WAV file).
In addition, you can choose the type for the logon button set (light, dark, opaque), remove or restore the ease of access button and logon text branding, apply logon information, and eliminate the shutdown button, as well as add a logon screen message.
The program is pretty light on the system resources, thus it doesn't burden the computer's performance. It has a good response time and applies changes immediately. No error dialogs have been shown in our evaluation, and the app did not hang or crash. Thanks to its intuitive layout and overall simplicity, first-time users should easily get accustomed to Logon Screen Tweaker.