I have Windows 8 Pro on my 2 year old Acer TimelineX installed. At first I was skeptical whether it is worthwhile to upgrade to Windows 8 really. But after a short time I will not miss it. Although there was initially a problem with the AMD graphics but this is not the fault of Microsoft. I am very satisfied with Windows 8. It runs very fast, flowing and "workflow" in my opinion is again better than in Windows 7. The Metro interface I think it's great and as an enrichment to the desktop. If you can stand it not at all does not even have to watch it. You can still shut down from the desktop. And if you sign up again you end up right back on the desktop. But I tend to feel that some here want to engage not at how Windows works 8. So I am happy and my laptop is doing very well with it. For the price very reasonable.