Remove Or Change Current Theme. If you dont have an unadulterated copy to reload into the directory you would have to try and feel out what has been altered. Rundll32exe SystemRootsystem32shell32dllControl_RunDLL SystemRootsystem32deskcpl deskThemes ActionOpenTheme fileCWindowsResourcesThemesaerotheme.
Deleting an old theme normally removes the information as that is a process normally included in the removal of a plugin or a theme. To Change Your Theme in Settings 1 Open Settings and clicktap on the Personalization icon. Where the data for the theme is stored depends on the specific theme.
Remember you can only have one active theme at a time.
Caveat is that this will show the theme selector dialog. Where the data for the theme is stored depends on the specific theme. See screenshot below 3. You should be able to add a similar content using your new themes Customize tool.