Things I hate about Windows, part 42972

Mom calls, is having problems with printing. "It says 'Unknown printer error'." Drive down, verify that is what it is saying. We determine that she is trying to print to a printer that no longer exists. I show her how to pick a new printer from the Print dialog box, prints fine. To make sure it doesn't happen again, I open "Devices and Printers" and delete the old printer; it disappears from that window. I go to print again and the old printer reappears. I go back to "Devices and Printers" and, sure enough, Windows put the printer back. Delete again; poof. Close "Devices and Printers", open "Devices and Printers": it's there again.