How to Password Protect OneNote (2026)
Lock a OneNote section with a password to encrypt your notes, set how soon it auto-locks, and remove protection — on Windows, Mac, and mobile.
2 posts
Lock a OneNote section with a password to encrypt your notes, set how soon it auto-locks, and remove protection — on Windows, Mac, and mobile.
Password protect an Excel file with Encrypt with Password, set a separate password to open vs. modify, protect the workbook structure or a single sheet, and remove a password you no longer need.