Tweak-7 is one of the popular tweaking solutions specifically aimed at Windows 7, as it comprises not only visual customizations, but also tools for cleaning and optimizing your system.
Tweak-7 1.0 build 1175 comes with several key improvements and is supposed to provide a better overall experience with the app, trying to solve some previously-reported bugs in the older versions of the app.
Of course, the app continues to work flawlessly on both 32- and 64-bit versions of Windows 7, but the trial version works for only 14 days.
The app doesn’t include a built-in automatic update system, so you’ll have to manually download the new package and install it on your computer. It should take only a few seconds, thanks to the lightweight package all files are included.