In The preview i am using
Wallpaper: Flavoured by ~Digitalshiva
StartOrb: steelOrb square for Windows 7 by ~AP-GRAPHIK
Icons: isabi4 for Windows by ~barrymieny and Suave by ~thyraz
1. Download Universal Theme Patcher. Run in it Administrative mode (right-click > "Run as administrator"),
UAC must be turned off.
After patch, restart the computer to take effect.
2. Extract contents (Win7-Blend.theme & Win7-Blend folder) into C:\Windows\Resources\Themes
and double-click on Win7-Blend.theme
Then restart to make sure everything works properly.