How do I get my Operating system to recognize my HP Envoy 6400 series Printer?

When I try to scan, Libre office does not recognize my current printer, HP Pro Envoy 6455. It does show all of the prior printers that are no longer installed. What do I have to do to get Microsoft OS 10 to recognize my printer. The HP Envoy 6455 is connected via WiFi. I am able to print but cannot Scan…

Like most software, LibreOffice recognizes only the peripherals that your operating system recognizes. As you have already surmised, the problem is with your “Microsoft OS 10”.

You should ask that at a Windows 10 forum or consult the printer software (lots of printers come with an app to help you print and scan in Windows).