Toshiba Portege R100

Question

I have a Toshiba Portege R100 notebook which was connected to a domain server. I have the password and am using the notebook without connecting to the network but it being so slow I want to reset it to factory settings. I have'nt got any recovery cd/disks or anything like that. I wonder if someone can suggest the best way of doing this to make this note book free from login and basicaly restore the factory settings with all the Toshiba software to enable all the internal gadgets working perefctly.

Thanks & Regards