[amnesia]

а что прописанно в этих местах ?
[HKEY_CURRENT_USER\Software\Microsoft\MediaPlayer\Preferences]
[HKEY_CURRENT_USER\Software\Microsoft\Plus!\Themes\Current]
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\ThemeManager]
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Themes\LastTheme]
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Themes]
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Themes\DefaultVisualStyleOn]
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\ThemeManager]
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Themes]
[HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\ThemeManager]