Most of the reasons are due to program vulnerabilities. There are two ways to solve this problem. The first method is to repair the word program with computer software. The second method is to restart the computer or software.

First of all, the first method is to repair the word program with computer software. General word programs are self-repairing. You can try to find them. The specific steps are as follows:

First close the word program, then open a folder casually, click Tools in the menu bar, and select the folder option. In the folder options window that opens, you can click View, find "Hide protected operating system files (recommended)" in the advanced settings and remove the check mark in front of this item, then click "Show all files and folders" in "Hide files and folders".

In fact, you can restart your computer. Software is a wonderful thing. Sometimes it doesn't work the first time, but it doesn't mean it won't work the second time. You can try to restart it many times. Of course, this should not be too frequent to avoid your program crashing. If it really doesn't work, you can restart the computer. Generally speaking, these are relatively simple solutions.