You cannot edit this as the administrator, (only trustedinstaller is given write access) so you must take ownership of the parent registry key/s first, then assign your accounts rights to write to the key. Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINESOFTWAREClassesCLSID{20D04FE0-3AEA-1069-A2D8-08002B30309D}] @=”Computer” “LocalizedString”=hex(2):25,00,75,00,73,00,65,00,72,00,6e,00,61,00,6d,00,65,00, 25,00,20,00,6f,00,6e,00,20,00,25,00,63,00,6f,00,6d,00,70,00,75,00,74,00,65, 00,72,00,6e,00,61,00,6d,00,65,00,25,00,00,00