Although I have not yet installed the product at the time of writing, I tested the preview for more than a month. Unlike Windows 8 that does not really convinced me without me repel Windows 8.1 has captivated me despite some lacks a little damage when you're used to the interface Windows 9x / XP / 7 ... I just opened the box to see and I found that the DVD had flaws in their center, but I installed the 32 bit version on a virtual machine without problems. I hope that when my problem with my PC it will be resolved will be the same for 64-bit. The thing that shocks me is that when you install there wrote Windows 8 and not Windows 8.1. If the packaging is medium (good enough). I would have preferred a plastic box that would damage less easily.