Welcome Sean Fox,
I understand how frustrating this must be, especially after already trying the usual printer settings, disabling OneNote printing options, and even performing a System Restore.
Before suggesting more advanced steps, could you confirm:
- Is your mum using Outlook (classic desktop app) or new Outlook for Windows?
- When she clicks Print in Outlook, does the Print dialog show Send to OneNote as the selected printer every time, or does it bypass the Print dialog and immediately send to OneNote?
In the meantime, please try these checks:
- Open Outlook and select File > Print
- Under Printer, make sure the physical printer is selected rather than Send to OneNote
- Click Printer Options (if available) and verify that Send to OneNote is not being remembered as the selected printer.
- Close Outlook completely, then restart it and test printing again.
Also, please let me know whether the issue started after switching to the new Outlook or after a recent Office/Windows update, as that will help narrow down whether this is an Outlook configuration issue or an add-in related behavior.
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