Perhaps "dead" is hyperbole and "past-its-prime" is more accurate. Microsoft is still huge, but its hegemony is starting to wane.
Lately I've actually heard sympathy for Microsoft in areas that used to be viciously anti-MS. It seems some of the hatred for MS has been transferred to Apple, and to a lesser extent, over to Google. But that's probably my subjective experience. I do think to the extent Microsoft can go lean, hungry, and humble, it will go better for them in the years to come.