I am connected to the internet but the button wont load

Hello, PLEASE HELP I am connected to the internet but the button will not load the browser I have windows xp and I have eset nod32 antivirus on my computer and I also have windows security center where it shows that my firewall is on and updates are on too but my virus protection is off I really dont know if something is wrong with my hardware or something else I just need to browse tge internet freely but the button appears to be loading but the internet does not show and my computer is kinda slow please help.if I.need to say more things about my computer tell me I just need help I.know nothing about fixing computers