WindowsStore

First I noticed that I can't install a certain game from either the Windows Store nor Xbox (the latter spitting out 0x000000001.) Then I deleted the GamingServices and GamingServicesNet registry keys as people instructed and reinstalled Gaming Services. Still doesn't work. The problem now is...

I have a Terra mobile 1771 laptop but my videocard is not working(Nvidia geforce 9600m gt 512mb) it is removable so i want to buy a new one (Nvidia geforce 9600m gt 1gb) but i dont know if my terra laptop can handle that