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:
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.
You can also download more themes from Microsoft by clicking the Get more themes online link in the Personalize page (see image above). The link leads to the Windows 7: Personalize your PC page at Microsoft from where you can download additional themes for your PC.
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Ramesh Srinivasan founded Winhelponline.com back in 2005. He is passionate about Microsoft technologies and has a vast experience in the ITeS industry — delivering support for Microsoft's consumer products. He has been a Microsoft MVP [2003 to 2012] who contributes to various Windows support forums.