You can remove the red underline in Microsoft Word which is a result of its Spell Check feature by following these steps: 1. Open Microsoft Word. 2. Click on "File" at the top left corner of the toolbar. 3. Select "Options" at the bottom of the drop-down menu. 4. The "Word Options" dialogue box will open. Click on "Proofing" from the left-hand side list. 5. Under "When correcting spelling in Microsoft Office programs," you will see a checkbox for "Check spelling as you type". Uncheck that box. 6. Click "OK" to save changes. This will disable the red underlining for all misspelled words. In case you are typing in a different language, you might want to change the proofing language rather than disable the spell check. This would allow Word to provide correct spelling suggestions for the language you are typing in. To set the proofing language: 1. Highlight the text for which you want to change the proofing language. 2. Click on "Review" on the top toolbar. 3. Select "Language" then "Set Proofing Language" from the drop-down menu. 4. Choose your desired language from the list and click "OK". Remember that this language setting will apply to the selected text only. If you want to set a default proofing language for all new documents, you need to do that in the "Word Options" dialogue (File > Options > Language). I hope this answers your question. Let me know if you need further clarification on any step.