1. A server timeout causes an inability to open, save, or access a document housed on a remote server.

2. A corrupted program file

3. An add-on that isn't compatible.

Sometimes all it takes is a simple restart of the computer to solve the problem. Disabling add-ins and maybe fixing the software are the best options if this strategy fails to cure the problem.

4. Open Word in Safe Mode. By loading the software without any templates or add-ins, you may see if it functions properly or if it is corrupted.

5. Add-ons should be turned off. If 'Word not responding' isn't an error in Safe Mode, and the incompatible add-in is the most likely culprit.

6. To open Word Options, go to File> Options>Add-ins.

7. To access the COM Add-ins dialogue box, select the Go button under Manage near the bottom of the window.

8. To disable all add-ins, clear the checkboxes next to each one.

9. To apply the changes and close the dialogue box, select OK.

10 If the 'Word not responding' error notice disappears, try enabling each add-in one at a time and restarting Word after each one to see which one caused the problem.

11. The document should be repaired. If the issue occurs when you open or saves a certain Word document, it is possible that the document is corrupted. To correct it, use a Word tool.

12. The word should be repaired. Open the Settings app in Windows 10 and go to Apps & Features. Select Microsoft Office from the app list, then Modify, then Repair Office Programs from the options.

13. The word should be uninstalled and reinstalled. Your Microsoft ID and Product Key are required. Remove it fully by going to Windows Settings or downloading the MS Office Uninstall Support Tool. Drag it to the trash and reinstall it on a Mac.