Win7 Pro, an HP Officejet AIO self-installed (plug & play) on USB a few weeks ago. Then the printer was disconnected to send to an "out of office" employee and a different HP - just a color Officejet printer - was plugged in USB & also self-installed. The old printer was "deleted" from the "Devices & Printers" but every time the user logs in, the old printer returns like a ghost, its image greyed-out. I have tried - to no avail - to remove it completely. I've gone into "print server properties/drivers" and tried o remove the "driver & package" - it fails claiming the AIO is still in use, which of course it isn't. I saw a post somewhere that said to remove the USB port in Device Mgr - then reboot - that didn't work either. HP says since it installed plug & play - without their software - they cannot advise what to do. So what CAN I do to get rid of this ghost? Thanks.