Windows7 works great, except that an update Microsoft has set the brightness control. It took hack to restore the setting (to a downgrade of the graphics driver). Not a big deal but it is an annoying can (the fault Microsoft, not Samsung).
Question power, it's perfect for the internet and for work. We will not 3D games.
If you want more speed, you need to add the RAM. But if he is not super fast, it's very satisfying.
the construction is very solid, and very successful design. For my daughter is his 'best friend' ;-)
A machine that will turn even years! the excellent gear.