Thank you for asking our community idea about this tool for Windows 7.
I did not use a Windows 7 optimization software or optimization tool
But I heard good reviews about the Tweak7 Windows 7 software tool.
The Tweak Vista was good also. With that experience and with the user friendly gui of Windows7, Tweak7 is more easy to use and more functional especially for normal non-technical Windows users. But if you are a more advanced Windows user, you can also use advanced features of Tweak 7.
There is a free download link for public version of Tweak7 at Stardock Products pages