This document applies to HP and Compaq desktop computers with Windows 7 or Windows Vista.
Use the steps in this document to fix serial and parallel issues by enabling, or resetting the serial and parallel ports.
note:These steps will work with BIOS v6 or earlier with older add-in cards. For BIOS v7, a newer Plug and Play card with IRQ sharing must be used.
note:There may be a mode setting or mode listings for the parallel port. Many parallel scanners and multifunction devices will not work unless mode is set to Extended Capabilities Port (ECP) or Bi-directional.