After re-reading my post it's not clear as i missed a comma, but windows 10 works really well on even the slowest PC's.
I've even got it installed on an old Pentium 4 HP computer and it runs better than Windows XP ever did with it's ancient 160gb mechanical hard drive. I don't use it often (just keeping as I think the older HP's look really smart and far more interesting than modern PC's. As long as you do one thing at once it can also do all the basics. Try to do two things at once and its not happy though.