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Below is the Microsoft link detailing the Windows Vista Fax and Scan Wizard. If you are using a fax server, make sure you know the network address of the fax server, for example file://companyfaxserver/, and are connected to the Network. If you are using a fax modem, make sure you have an analog phone line attached to your computer. A digital phone will not work. If you have an internal fax modem, Windows will detect it during setup. If you have an external modem, connect it to the computer and turn it on before running the wizard.
Open Windows Fax and Scan
At the bottom of the left pane, choose Fax
Choose Fax Accounts from the Tools Menu
Follow the Wizard to set up a fax server or a fax modem
Set up your computer to send and receive faxes