There are different issues that could explain the program’s disappearance. So, what if Grammarly for Microsoft Office has disappeared? In this case, you can’t correct your work! You have to take the necessary steps to get the tool back in Word. When something goes wrong, Grammarly disappears from Word and its tab is nowhere to be found. When turned on, it appears on the right-hand side, displaying errors and corrections that can be applied to the text. After installation, it’s embedded into Microsoft Word as an add-in. Grammarly for Windows isn’t a stand-alone program.