Microsoft is finally giving you more control over proofing languages in OneNote on Windows, and this one is especially useful if you work in more than one language.
Until now, OneNote followed your keyboard language and applied proofing at the paragraph level.
That still works the same. But now, you can do more. You can apply a single proofing language to an entire page, or set a default language that stays the same no matter which keyboard you use.
To try it, go to Review > Language > Set Proofing Language. From there, you can apply it to the whole page or make it your default.
This update is rolling out to OneNote on Windows Insiders now and will reach everyone by the end of January 2026.
Abhijith M B
