Although I don't do gaming or spread sheet/math calculations I have a fairly new Dell Laptop and two refurbished laptops that I have used for years without any problems. A Windows 10, 8.1, 7 and even an old Acer with windows vista that I upgraded successfully to Windows 10 works near perfect as with the others. I use the old ones more than my new to me dell for heavy surfing and movie streaming, heavy photo uploading and downloading and word processing and emailing. Cheap to me and so far so good.
