This isn't four years ago. There are viable alternatives to a Windows PC, there's less reason to upgrade four year old computers, and people are understandably

This isn't four years ago. There are viable alternatives to a Windows PC, there's less reason to upgrade four year old computers, and people are understandably hesitant about buying a Windows tablet. It will take time for Microsoft to overcome these factors. It's still a success when you account for these things.