So, have you upgraded 2 RAM on your laptop?I think the disassembly guide you mention doesn't pertains to one with the model: B10MW-220IN laptop currently that I have. MSI Kolkata(Calcutta/WestBengal/India) service center has confirmed me that there are 2 separate slots for RAM in THIS PARTICULAR MODEL of Laptop.
I didn't find any link in YouTube of disassembly(rather opening this PARTICULAR BRAND of LAPTOP by MSI).
If you do find, kindly share it with me.
If yes, could you share the system information exported from Creator Center?