OneNote provides several tags — visual markers — that you can apply to any part of your notes to help you visibly prioritize or categorize marked notes. For example, in a list to plan for an upcoming trip, you might apply the Critical tag (visualized as a red exclamation point) to the line item “Renew your passport” to let you easily remember its importance the next time you glance at the list.
Add a tag
Do the following:
In your notes, click or select the text that you want to tag.
On the Home tab, in the Tags gallery near the right, click the icon of the tag that you want to apply. For example, to tag the text as an important question that you’ll need to remember to find an answer to, click the purple Question icon. Use the arrows that appear in the Tags gallery to scroll through tags or to display menu of all available tags.
Note: The To Do tag is interactive. After tagging a note with it, the tag will appear as a blank check box. You can click this box and OneNote will place a red check mark in it to show the item as completed. It’s a handy way to visually track your progress in any to-do list.
Remove a tag
To delete a tag you no longer need, do the following:
In your notes, click or select the text whose tag you want to remove.
Click the Home tab, move the mouse over the Tags gallery, and then click the down-facing arrow that appears at the bottom of the gallery box.
At the bottom of the menu that opens, click Remove Tag.