Problemas con internet

Hola Experto
Vuelvo a molestar. Tengo mi computador con windows xp y utilizo windows internet explorer.
Hace unos días trato de abrir unas paginas como la de mi banco, hotmail, gmail y otras paginas y arroja un mensaje que dice Default Website Page y me arroja tode esto que pongo a continuación.
No se si tengo un virus o que me podrías ayudar.
De antemano Gracias
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