Here are some reasons you can't access word documents on Windows.
When you try to open a document prepared in an earlier version of Microsoft Word, such as 2007, the error appears. Typically, the problem comes after an upgrade.
It might be happening because of add-ins that you've installed, which now interfere with your ability to open documents in Windows.
Another reason is the file is corrupt. You can open it on another computer and use a file checker.
This can happen if you have multiple documents open and are trying to save them all at once, this could cause the shutdown of your Microsoft Word window.