First, I've been roaming through websites of various online laptop sales' shops in Pakistan and everywhere I've found different specs for Dell Inspiron 15 N5050 and N5040 laptops. On the Dell's official website, they say Dell 5050's RAM is 4 GB and Hard disk is "upto 500 GB" while on other sites it's different, same is with RAMs capacities, prices etc.
I want to ask that;
1) Are the laptops only available with the specs that are mentioned in the official website or can they be customized etc.? If they're available with different specs, then does it means they've been opened and not pin-packed/sealed?
2) Is Windows 7 Genuine already installed in Dell 5040 or 5050 or other Dell laptops?
3) What is a better choice b/w 5040 and 5050 ?