Reports have suggested that the Red Devils were looking at the South American as a possible replacement for Carlos Tevez whose loan contract expires at the end of the season.
Preziosi insists there has been no contact whatsoever.
"For now, there are no negotiations," he said on Radio Radio.
"There is a high probability that Milito stays with us.
"I have had no negotiations with any team. There was contact with Inter in January but now there's nothing."