How to Access the Hidden Themes in Windows 7

Windows 7 includes additional themes set which are kept hidden from the themes dialog. The hidden international themes are stored in a super-hidden folder. Here is how to access the hidden wallpapers & themes set.
Open Windows Explorer and paste the following address:

%WinDir%\Globalization\MCT

Note that the folder MCT is hidden (system attributes) by default.
Under the MCT folder, the following folders (MCT-AU, MCT-CA, MCT-GB, MCT-US, MCT-ZA) exist:


These folders include themes for Australia, Canada, UK, US and South Africa. Under each folder there will be four folders, including a Theme folder. Open the Theme folder and double-click the .theme file to apply it.
The Globalization theme gets added to the Windows Themes list in the Personalize applet.