I guess consumer pressure on Microsoft tech support after Win8 release is above any limits. Lack of Start button, no easy way to shutdown PC, full-screen interf

I guess consumer pressure on Microsoft tech support after Win8 release is above any limits. Lack of Start button, no easy way to shutdown PC, full-screen interface with no way of knowning which app is active and without easy way to switch them - all of these ones combined make up a perfect techsupport disaster. I wonder how large is average return rate of Windows 8 devices?