Recently bought a second hand laptop for my daughter to share games etc via wifi I need the password how do I find or disable the password

What Wifi password? Do you mean the one YOU set on YOUR router?

It is a second hand laptop it has a name and password already applied I'm trying to share games via my phone thanks

it is a second hand laptop it has a name and password already applied I'm trying to share games via my phone thanks

Contact the party you acquired it from and tell them to give you their Username and Password.