It is therefore recommended that the application be closed before the USB device is unplugged. USB001 is the default printer port for USB printers and is the first port Windows selects when connecting a printer via the operating systems Devices and.
The virtual COM port will not be accessible even after the virtual serial device is reconnected unless the virtual COM port is released by the application prior to the reconnection, which may require closing the application first. The virtual COM port will be removed from the device manager when the USB cable is unplugged, even if an application has the virtual COM port open. It is recommended to restart your computer after adding or removing hardware options such as a USB virtual COM port. The port and printer are removed from your computer. However, there is a known Windows issue that affects most applications. Right-click the USB virtual printer port you want to remove and select 'Uninstall' from the context menu. Note that, if you unplug the USB device and plug it back in later, Windows will still remember the COM port assignment, so you won't need to go through this procedure again. Now close the System Properties window.Īt this point, you are ready to use the virtual COM port in any application! Microsoft Windows features a workaround for this situation by allowing a shared printer to be mapped to an internal virtual LPT port through the command line. Older programs are unaware of USB and can only use parallel port printers. If you want to confirm the port change has indeed been made, click on Device Manager again and check the listed Ports. Before USB, most printers used a parallel port to connect to the computer. Click here to download the Windows 7 to Windows 10 and Windows Server (see note. Click OK and then OK to the port settings. Virtual COM port (VCP) drivers cause the USB device to appear as an. Click OK, and if Windows warns you about a duplicate, ignore the warning and click Yes.