Can a HP Touchsmart be upgraded?

In terms of graphic video card, processor and else, can this PC be upgraded?

That is basically a laptop in desktop form. All the components are laptop parts, if the motherboard uses MXM for the video card you may be able to, that is if the video card isn't soldered in.

negative.. most of those use an intel chipset same goes for the cpu.. though you could contact Hewlett packard over it and see if they have anyhting special for the touchsmarts.