Using PowerShell to disable Loopback Check
For most of us editing the registry has become more of a tired exercise so any other options are certainly welcome. For disabling loopback check I find the PowerShell option to be fast and clean. To execute launch an elevated PowerShell command window and launch the following command:
New-ItemProperty HKLM:\System\CurrentControlSet\Control\Lsa -Name "DisableLoopbackCheck" -Value "1" -PropertyType dword