I think the biggest problem I have is watching streaming video. I don't know if it's a problem with the OS itself, browser compatibility or the video drivers or what. But I can't watching anything in 1080 without serious frame drops. I never had problems with the computer on 7 or 8, and in fact, a couple of months ago I rolled back for a week or so, and the problems went away. The problem is the worst with Chrome, which is my browser of choice. Firefox is better but not much. They won't load at all with the old IE. (Or if they do, they green screen.) The new Edge works fine once it gets going, but some videos literally take five minutes to load, especially on Amazon. Last week when, I finally got around to watching the extended BvS, I swear, I stated it up, went to the bathroom, grabbed a banana and cup of water, and it was still loading when I got back to the TV. I just built the HTPC in late 2013, and I don't really feel like wasting money on parts to make it work. And I don't really want to get a Roku/Firestick/etc because, as it is I already have the Ethernet split once (PS4), and the WIFI signal in that room isn't very strong. Besides, the TV only has two HDMI inputs. I keep hoping the problem with fix itself, but I to the point where I just might permanently roll back, even though I don't want to. On my laptop, however, it seems to work great--or it least it does after I made some "adjustments."