However, I would contact Window Help Desk and let them know what's going on with your computer first. They can fix it for you for free. But, if you are computer savvy, perhaps one of these solutions will work.
https://www.google.com/search?q=Winword.exe+error?&client=firefox-b-1-d&sxsrf=ALeKk031FGh5gNv4uWEHG8UNz_-p5TgRuQ:1582848055578&tbm=isch&source=iu&ictx=1&fir=eLem2IDaBaJaFM%253A%252C7eYqUK-QFhB_NM%252C_&vet=1&usg=AI4_-kTOLLonbSoOZ3Ov-uoaeboA5Sym2g&sa=X&ved=2ahUKEwiM3tfA-PLnAhUKXKwKHbFvCD4Q_h0wAHoECAgQBA