Windows computers can be set up to send and receive faxes using an application included in the operating system. In order to use this application, the computer must be connected to a phone line. Look for the Windows Fax and Scan option in the Start menu to use this method.
Another way to send faxes from your computer is using an online service such as Fax Zero or eFax. These sites allow users to send a limited number of pages for free by uploading documents from their computer and transmitting them over the Internet. To use one of these online services, visit the service's homepage and follow the instructions.