Also, check our Second part of theme collection here Download Free Windows 7 Themes Once downloaded you will need to double click to install them. You can find more unlocked and secret features of Windows 7 here.
For example, You might find some theme for India which is not available for the US. You can learn how to change and manage windows 7 themes by reading the post. Below is the list of Windows 7 themes free download which you can install and get Aero effect in different colours like blue, green and even apple and mac theme if you want to. Windows 7 is already out and so are the W indows 7 themes.