Re: I'll wait until Windows 9 before considering an up/down grade from win7
Vista didn't really hurt MS - they carried on selling XP and then they had massive uptake on W7 afterwards
Complete bollocks. Vista really and persistently damaged the image that Microsoft had carefully cultivated with XP (the merger of the DOS bastards and NT). It had huge hardware demands and, although intrinsically more secure, it managed to have application permissions so confusing that most people looked for the "Michael Rimmer" switch to disable it!
Vista was supposed to completely replace XP but, once PC makers found that they couldn't sell it, Microsoft extended XP's lifetime so that they could at least sell that. It put corporate customers off upgrades they might otherwise well have done and entrenched Microsoft's reputation as a purveyor of shoddy browsers with a synthetic restriction on which OSes get which browser.
Because they make so much money from Office and the volume licensing that they have the damage to the bottom line didn't show up immediately. But Vista killed Silverlight and a host of other technologies that Microsoft was hoping to force down the world's throat.
Windows 7 is a fine OS in the XP tradition - I primarily use MacOS and am not a huge fan of Windows - but everyone I know is reasonably happy with 7: it's stable, has all the apps and drivers you could ever want and you know where things are.
Windows 8 was a clownish attempt to tell the market what it wanted. It proved to be both Sinofsky's and Ballmer's (and who knows who else's?) exit pass. And it still doesn't work. Now that the PC/tablet inflexion point has been passed, Microsoft's bottom line is much more susceptible. It's managed to come up with a strategy that satisfies neither touch nor desktop users. Microsoft has massive traction in the installed base and is still managing to lose market share.