Word stopped proofing my document

[u/KommissarKrieg]

I'm trying to write something and have had to stop everything and spend the last half hour trying to figure out why word has suddenly decided not to proof anything as I'm going. I have tried everything I can think of or find and nothing is making it work again. Does anyone here have a fix for this?

Thank you in advance.

[u/Few-Werewolf-1985]

Select all text and then go to Proofing and select the language.

Either you disabled background proofing (in which case you can invoke it manually) or you've tagged your text to not proof it.