WinHEC 2008 was expected to take place in the spring, but it has been put back to the autumn.
Microsoft has not confirmed the date for the US event and has only said it will take place on the West Coast, at "a location to be determined".
"We have re-scheduled WinHEC for the fall in response to industry feedback," said Redmond.
The delay will mean key hardware players may not get the updates about Microsoft's software platform roadmaps as quickly as they would have hoped.
The event is usually addressed by chairman Bill Gates and other senior figures, but Microsoft has promised to hold smaller technology-specific events on the run up to the main show.