Printer sharing without a password

I'm trying to help my sister remotely with her windows 10 desktop which has a printer connected to one of the USB ports. She wants to share this printer with a 2nd computer (also win10) on her network. So I set the printer to shared and gave it a sharing name. Then on the 2nd computer I tried to install the printer using //computerName/printerName. It thought about this for a while and then asked for a username and password. Unfortunately my sister doesn't seem to know the password for her computer. (It doesn't ask for one when it boots up). I also just tried searching for a networked computer on the 2nd computer. Then I selected the 1st computer (with the attached printer). At this point it brings up a window asking for the 1st computer's credentials. I don't know if this is yet a different password, but again is something my sister doesn't know.

Is there any way to share the printer without these credentials, or is she pretty much hosed without it?

~Paul

Have a look in Users and see if a Password is even set , On both computers ? if not add one....you can always turn it off at boot , but Win10 likes PW for security and Scheduling Tasks etc.

Agreed, one computer needs permission to access the other one. For my purpose I use printers with Ethernet connections to my Router, don't need passwords and work with any computer I install the software on, either wired or wireless. Some folks prefer Wi-Fi connections but I find them to be less reliable.

Well certainly sharing a network printer is easier and preferable, but this is an older printer that only connects via USB. I just realized that I should find out what kind of router she has. If it is relatively modern router with a USB port we could just plug the printer into that ... but if not I guess we will still have to figure out the password issue.
~Paul