How to Change/Modify/Forget & See Wifi Password on Windows 10

My Internet connection goes down but i have another connection from neighbors many days ago they changed their Wifi router name may be its pass, but i want to connect my internet via their connection, the problem i am facing is same name of device like previous one which is PTCL-bb.

Few days ago i was looking for options through i can change my settings of internet, you people know that in