Have you tried using the subinacl command to change the registry permissions?
Can download it from: Download details: SubInACL (SubInACL.exe)
Remember to run this in an Administrator command prompt.
Also note it installs the binary to "Program Files\Windows Resource Kits\Tools\" by default
Example:
subinacl /subkeyreg HKEY_CLASSES_ROOT\DesktopBackground\Shell\Display /setowner=Administrator (set the owner)
subinacl /subkeyreg HKEY_CLASSES_ROOT\DesktopBackground\Shell\Display /grant=Administrator=F (grant permission Full access)
Have you tried using the subinacl command to change the registry permissions?
Can download it from: Download details: SubInACL (SubInACL.exe)
Remember to run this in an Administrator command prompt.
Also note it installs the binary to "Program Files\Windows Resource Kits\Tools\" by default
Example:
subinacl /subkeyreg HKEY_CLASSES_ROOT\DesktopBackground\Shell\Display /setowner=Administrator (set the owner)
subinacl /subkeyreg HKEY_CLASSES_ROOT\DesktopBackground\Shell\Display /grant=Administrator=F (grant permission Full access)