How to Access Hidden Windows 7 ThemesWindows 7 contains different theme packs for different regions. When you install Windows 7, you select the language, time zone, and currency format. This determines which themes are available to you by default. Being from the US, scenes from different states in the US, such as Washington, Wyoming and Maine, are available to us.
However, there are four other theme packs pictured in the following image that are hidden from your use.

Accessing all the themes is easy to do once you know where to find them. They are hidden in the
C:\Windows\Globalization\MCT directory. The
MCT directory within the
Globalization directory is hidden so it will not display even if show hidden files and folders is enabled. However, for this method you do not need to deal with the hidden files settings.
To access the hidden themes, open
Windows Explorer, type or copy and paste the full path to the
MCT directory listed above into the address bar and press
Enter. You can also enter the directory into the
Search box on the
Start menu.

Once you have accessed the
MCT folder you will see five directories as listed below:
* MCT-AU
* MCT-CA
* MCT-GB
* MCT-US
* MCT-ZAThe directory within each
MCT directory that is named for the region (for example,
United Kingdom) contains wallpaper files (
.jpg) that you can grab and use.
To view and use the theme for each region, open the
Theme subdirectory and double-click on the theme file.

The theme is added to the
My Themes section in the
Personalization module of the
Control Panel as pictured at the beginning of this post. If you live in the
US, however, and you double-click the theme pack for the
US, it will be added to the
Aero Themes section. We were unable to test if the same is true for the other regional theme packs.

More themes for
Windows 7 are available at
http://windows.microsoft.com/en-US/windows/downloads/personalize.
Enjoy...