I'm trying to help someone install an HP Officejet 5610 USB printer over the phone. I told him to put in the CD and install that way. He gets to the part where it says "Installing printer.." but after it gives an error that says that Installer cannot access registry key HKEY_LOCAL_MACHINE\SYSTEM\\CURRENT_CONTROL_SET\ENUM. I asked him to check the permissions on this key but he said that it doesn't say "permissions" as an option when he right-clicks on the key. Also he is logged in as Administrator. I also tried having him install by adding a printer and it cannot detect the printer automatically and Windows does not seem to like the driver because it doesn't install. I've tried different local ports and using Have Disk method and go through the CD but tt says that it is not signed. Any help would be appreciated.