How does Word automatically check spelling errors to close?

How does Word automatically check spelling errors to close?

As shown in the following picture, I typed my name in English, but word began to be paranoid about my name, and the red wavy line was courting me.

Word

I can't tolerate word's stupidity, so open the File menu and click Options. When you open the Word Options window, click the Proofing tab on the left, and in the Proofing Options window, uncheck the "Check spelling as you type" option, and then tap the OK button.

Word

Back to the layout to see my sentence in English, red Wave line did not! So I feel--word really listen to me!

Word

Friend, if Word also bothers you, you may as well train it!