I have an older Toshiba Satellite L355-S7905. I'm running Vista, which came on it. I understood Microsoft is no longer supporting Vista so I figured it's time to update the operating system, but I've heard awful things about Windows 7. I've heard nothing about 8, 8.1 & 10. My laptop works fine except it could use a new battery which isn't cheap. So, I'm wondering, should I just buy a new updated laptop instead of putting so much money into my old one. Also, I don't know if I have enough space left on my old one in order to put on a new operating system. One more question....if i buy a new one, should i buy another Toshiba in irder to use some of the memory for the new one?What would you do?