Wireless Security System

I have a d link router having model no. DI-514 and i want to know how to make my wireless System Security?

enabled, how to setup the security so that only my laptop can access this router and not others. Please explain me in detais and steps to follow , I would highly appreciate your any help.
Thanks

enter the configuration page … go to security and set a password for the router … make a wpa key … maybe enable mac filtering and only allow the mac adress of ur adapter … disable ssid broadcast ..

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