I've read that PC sales fell 21% last quarter. The main reason is mobile and Android and iOS rules (so far) in that arena. So, as most PC makers were hoping that Windows 8 would revive PC sales, Windows 8 has been a failure so far.
you mean companies thought that the wave and tide of turning to mobile devices would cease when a new windows OS was offered.... they deserve to fail for that. Those companies should have made a ready to go device that was mobile and offered the win8 experience like the ipad does with the iOS.
win 8 has a ton of great features and is of course a huge step in the right and future direction, but people hate change, and on top of that, folks will will hold off purely based on the negative press and word that has been spread by rival companies and people that hate change and spent 30 minutes on it, and decided it was too hard, or some such nonsense.