The faster bootup time is also a myth in my point of view. If I compare windows 7 and windows 8 on the same hardware, it is just about the same. Windows 8 might arrive at the desktop slightly sooner, but showing the desktop doesn't mean it has finished booting, it is still loading services etc., and reacts slowly to user input at the beginning. So you still have to wait for about the same time like you do with Windows 7 to actually start to work with it.
IE10 is still IE and insecure. I never use m$'s browsers. So that isn't an argument either.
Search? What for? I usually know at least approximately where my files are. Also the installed software is easier to find via a menu system (like the start button), than having to enter it's name (which I might have forgotten and then a text search is more difficult) in a search bar. For me it is like going backwards in time to the days of DOS where you had no GUI and had to type in everything.
Task Manager? The one you get in Windows 7 is good enough, and if it isn't there are 3rd party tools like Process Manager available...
SkyDrive? I can use that with Windows 7, XP, Linux and probably most other OS's too....
Metro? Totally useless crap if you don't have a touch enabled device, and also then I'd Question it's usefulness. The same applies for the store, there isn't anything there for which there aren't any better real Windows programs.
Support for UEFI? What would anyone need that for???
The only useful stuff that is left is:
1. the Hyper-V Host (and that really can only be used on hardware that has virtualization support and enough RAM). Also, most people don't need that. You can also always use a type 2 hypervisor like Virtualbox, it is good enough for virtualization on a desktop system as that normally only makes sense for testing purposes and then you can live with the lower performance.
2. WindowsToGo, which I haven't come round to testing yet though.
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