Workaround available
https://www.bleepingcomputer.com/news/microsoft/windows-10-bug-breaks-usb-printer-port-on-restart/
Microsoft says that USB printer port will not be available for customers with devices running Windows 10, version 1903 or later if they disconnect the printer while shutting down the computer.
After starting up the Windows 10 device again, the USB printer port will disappear from the printer port list and any tasks requiring it will fail.
Workaround available
Jun 9, 2020, 7:34pm UTC
https://www.bleepingcomputer.com/news/microsoft/windows-10-bug-breaks-usb-printer-port-on-restart/
> Microsoft says that USB printer port will not be available for customers with devices running Windows 10, version 1903 or later if they disconnect the printer while shutting down the computer.
> After starting up the Windows 10 device again, the USB printer port will disappear from the printer port list and any tasks requiring it will fail.