Download Microsoft Office login to your Grammarly account.
Then click on Apps. Next, click Install next to the Grammarly for Microsoft Office. If you prefer you can install the Grammarly for Windows.
Next select the product you want to install. I installed both so that it checks both documents and emails. But you may not need the email function. After checking the boxes click install.
Notice at the bottom left of the screen is a download button, click there to run the download.
Next, there will be a security warning, click Run again.
Click the Get Started to begin the download.
Click finish then login to Grammarly.
When you open Microsoft word there will be a green G with the enable Grammarly. Click on it to start having Grammarly correct your writing as you write.