I had a laptop running windows 8 stock. I never had major issues with it until I upgraded to windows 10. Now it seems to run very slow, the fans seem to always be loud, and the laptop in general just feels old. I am not sure if it is because it is 3 years old or what, I figured it could handle windows 10 much better since it is a lot like windows 8. Have you upgraded your laptop to Windows 10 problem free?