How can I remove a tag from many items at once?

Hi dealtek​, thanks for your question!

Just to make sure I'm understanding correctly - are you looking to remove one of the tags everywhere in your vault, or only from the items that currently have both tagA and tagB?

If you'd like to delete a tag entirely, you can right-click the tag in the sidebar of the 1Password desktop app and choose Delete Tag. That will remove it from all items that use it.

I look forward to hearing from you!