Load the command prompt to your right-click options
Easy as this
Windows Registry Editor Version 5.00
[-HKEY_CLASSES_ROOT\Directory\shell\runas]
[HKEY_CLASSES_ROOT\Directory\shell\runas]
@="Open command window here as Administrator"
"HasLUAShield"=""
[HKEY_CLASSES_ROOT\Directory\shell\runas\command]
@="cmd.exe /s /k pushd \"%V\""
[-HKEY_CLASSES_ROOT\Directory\Background\shell\runas]
[HKEY_CLASSES_ROOT\Directory\Background\shell\runas]
@="Open command window here as Administrator"
"HasLUAShield"=""