Otherwise, the problem will keep on repeating again and again and ultimately the whole system will be corrupted. If you have experienced any of these symptoms, it means that you need to quit word on Mac. Mac will hang for a long time and won't respond to any command.Your system will crash randomly without any warning.The MS Word will crash and close every time you try to open a file.The content would be weird characters impossible to understand.If there is an issue with your Mac, then it will show the below symptoms. Hardware bugs or program errors with Microsoft Word.