Hello Hsin mei,
Thanks for using Microsoft products and posting in the community.
Regarding your problem with Word's stack overflow prompt;
Please try to troubleshoot the problem in the following ways:
- Create a txt text document, and then copy and paste the content of the Word document page 68 into the txt text, and then copy the content from the txt text to replace the content of page 68; this can be completely deleted from page 68 of all the formatting to rule out whether some of the content of the page to cause the problem;
- Disabling add-ons:
- Open Word and click on File > Options > Add-ins.
- Select “COM Add-ons” in the “Manage” drop-down menu and click “Go”.
- Uncheck all add-ons and click OK.
- Check macros and scripts: If you are using macros or scripts, make sure they do not have infinite loops or recursive calls.
- Use the official tools to completely uninstall office, and then reinstall:Uninstall Office from a PC - Microsoft Support
this is cleaner than the general uninstallation, there will be no residual.
I look forward to your reply and I will give you further support as soon as possible based on your reply.
Best Regards,Arthur - MSFT | Microsoft Community Support Specialist