How to find MS Word?

You can repair MS Office through the Uninstall menu of the Control Panel in Windows. Rather than uninstalling, you select repair. If you did not have MS Word installed, indeed did not have MS Office installed upon your computer, you may have been accessing the online version and simply lost the link to the online version. To use that online version, you must have a Microsoft Account, which you can set up for free. With OneDrive, you could save some of your work in the Cloud.

Sometimes a corruption can occur and components such as MS Word can vanish from your menu. That gets to be a bit tedious to fix and I have been known to work around it by making a short cut to the exe file and pasting it in a menu. That is really not a fix. You could try to use a system restore point to a day when you know it was present and working. That would not lose any writings but it would remove programs since installed. And you would have to update your antiviral definitions and any patches since that time.

If it is currently on your computer just lost, you could install a freeware program called Everything. Run it then type in word.exe. There it will be. That is what allowed my "not a fix but work around." But try the other suggestion first.