No complaints for Win10 for me! I love it, my laptop runs so much smoother. Win8.1 just was not my jam, it didn't work very well with my laptop. Was too demanding on resources. The only downfall is that my webcam no longer works but that's my PC's fault, it did this when I first bought it but now I don't remember how I fixed it. Oh well, just a small setback! I can always get an external.