Using SubInACL to repair file and registry problems
From Birnam Designs Wiki
Running this sequence of commands with SubInACL will fix many file and registry permission problems, such as what happens after Quicktime updates are installed. This will probably need to be done from System Level Access
cd /d "%programfiles%\Windows Resource Kits\Tools" subinacl /subkeyreg HKEY_CURRENT_USER /grant=administrators=f /grant=system=f /grant=restricted=r /grant=%USERNAME%=f /setowner=administrators > %temp%\subinacl_output.txt subinacl /keyreg HKEY_CURRENT_USER /grant=administrators=f /grant=system=f /grant=restricted=r /grant=%USERNAME%=f /setowner=administrators >> %temp%\subinacl_output.txt subinacl /subkeyreg HKEY_LOCAL_MACHINE /grant=administrators=f /grant=system=f /grant=users=r /grant=everyone=r /grant=restricted=r /setowner=administrators >> %temp%\subinacl_output.txt subinacl /keyreg HKEY_LOCAL_MACHINE /grant=administrators=f /grant=system=f /grant=users=r /grant=everyone=r /grant=restricted=r /setowner=administrators >> %temp%\subinacl_output.txt subinacl /subkeyreg HKEY_CLASSES_ROOT /grant=administrators=f /grant=system=f /grant=users=r /setowner=administrators >> %temp%\subinacl_output.txt subinacl /keyreg HKEY_CLASSES_ROOT /grant=administrators=f /grant=system=f /grant=users=r /setowner=administrators >> %temp%\subinacl_output.txt subinacl /subdirectories %SystemDrive%\ /grant=administrators=f /grant=system=f /grant=users=e >> %temp%\subinacl_output.txt subinacl /subdirectories %windir%\*.* /grant=administrators=f /grant=system=f /grant=users=e >> %temp%\subinacl_output.txt