A bit off topic, but how does one use Windows 10 now without sacrificing on speed / resources? Recently purchased Lenovo E480 and E585, they all come with stock Windows 10, so before getting Linux in, I've tested it and it is basically unusable: disk/cpu usage is constantly jumping between 80-95%, fans are always turned on producing a lot of noise. Is this common to all laptops with Windows or just Lenovo?