W10 is not bad but definitely nothing to write home about.
I upgraded last Friday from 8.1 on a Lenovo laptop. It is noticeably lower after the logon to before I can start opening files or run a program and the firefox takes again more time to open completely the home page. The other negative point, making me to start thinking to move back to W8.1 is the series of small icons (facilitating various operations like turning on the bluetooth or finding any device connected to the computer) when the pointer was moved out the left side of the screen. I am not sure if it is clear what I liked on W8.1.
Any ideas on how to move back to the previous OS?