Hidden Windows 7 themes

Windows 7 Themes and wallpapers are amazing as compared to previous versions of windows.
But do u know that it has several hidden & locked themes provided for regional countries such as Australia, Canada, Great Britain, United States and South Africa.
You can even use there themes..
different ways to find default themes in your system which are alerady available

Easiest way to  Unhide Windows 7 hidden locked Themes:

1. Navigate to \Windows\Globalization\MCT. (mct is a hidden folder)
2. Open a MCT-(AU, CA, GB, US, or ZA) folder for the regional theme that you want.
3. Open the Theme folder in the selected region folder.
4. Select the .theme file to use it.
5. Enjoy your new themes.

Using windows 7 Search

1. Go to \Windows\winsxs Directory
2. Search for *.theme.
3. you will get all the themes which are available in system.simply click and open the files.

Editing the registry

Windows Registry Editor Version 5.00

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Themes\InstalledThemes\MCT]
“%windir%\\Globalization\\MCT\\MCT-AU\\Theme\\AU.theme”=””
“%windir%\\Globalization\\MCT\\MCT-CA\\Theme\\CA.theme”=””
“%windir%\\Globalization\\MCT\\MCT-GB\\Theme\\GB.theme”=””
“%windir%\\Globalization\\MCT\\MCT-US\\Theme\\US.theme”=””
“%windir%\\Globalization\\MCT\\MCT-ZA\\Theme\\ZA.theme”=””
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Wallpapers\KnownFolders\Windows Wallpapers\MergeFolders]
“%windir%\\Globalization\\MCT\\MCT-AU\\Wallpaper”=””
“%windir%\\Globalization\\MCT\\MCT-CA\\Wallpaper”=””
“%windir%\\Globalization\\MCT\\MCT-GB\\Wallpaper”=””
“%windir%\\Globalization\\MCT\\MCT-US\\Wallpaper”=””
“%windir%\\Globalization\\MCT\\MCT-ZA\\Wallpaper”=””

Note: copy the above text and paste in a notepad and save it with.reg extension and open it and add to registry

Now you can access all themes by right clicking on desktop and personalize settings.