To find the hidden wallpaper:
- Type globalization in a search of your C: drive.
- The only result should be a folder located in the main Windows directory, and you should only be able to see ELS and Sorting folders nested here.
- Now search for MCT in the top-right search bar.
- This will display five new unindexed folders, each corresponding to a different global region. Browse these folders for some extra themes and wallpapers specific to Australia, USA, South Africa, and Canada.
From here you can select a new wallpaper.