Hi. One person ask me, maybe there is chance to upgrade this notebook. It comes with 4 gb ram, 5400 rpm hdd, and celeron 1000m cpu. So it's worth to add extra 4 gb ram, and ssd? What windows runs best with this machine - 7/8 or 10? Also how to know that cpu is soldered in motherboard, or not? Don't wanna waste my time and disassemble it. Cpu z shows it's 988b rpga socket with hm70 chipset. Hwinfo shows by cpu code name: ivy bridge-mb bga sv Thanks for advice.