Hate registrations

Last week I found I had the EXACT same problem you discovered. I've never (knowingly) downloaded Onenote, or activated it, or made any changes to Paint.net I just started seeing the print function of Paint.net getting hijacked by Onenote, a program I still have no idea what it's used for. Basically, you have either (1) uninstall OneNote or (2) deactivate it from Microsoft Office. For me (Windows 7), this took the following: 1) Click on [Start] Button 2) Select [Control Panel] 3) Click on 'Uninstall a Program' A list of all programs on your PC appears 4) Right-click on your version of MS-Office 5) Select 'Change' 6) Select 'Add or Remove Features' 7) Click the [Continue] Button] A menu of all possible features of MS-Office appears 8.) Click on pull-down button [V] to the right of OneNote -- NOT the expand button [X] to its left 9) Click on [Not Available] 10) Click the [Continue] Button MS-Office will re-configure itself, which may well take several minutes. 11) Click the [Close] Button. 12) Bring up a program in MS-Office. https://www.techwalla.com/articles/how-to-disable-microsoft-onenote is where I learned this.